Description
MS21900-6 – NIPPLE, BOSS
NEW SURPLUS, SOLD PER EACHNo specs available for this listing at this time. If you can share a spec sheet or confirmed details, email Sales@avboxus.com. We’re actively expanding our part information.
Part Number: MS21900-6
Unpunctuated: MS219006
The specifications above are for reference only. Verify tolerances and details in the official spec sheets before use.
AVBOX US Certificate of Conformance: This product comes with an AVBOX US Certificate of Conformance (CoC), assuring that the part(s) meet specified design, quality, and regulatory standards at the time of manufacture, providing confirmation of compliance and adherence to applicable aviation requirements.
Part Numbers, Alternates & Reference Info: We ship the exact part number shown in the product title/description when in stock. Any NSNs or alternate part numbers listed are for traceability/reference only. If a compatible alternate is the only option available, we will contact you before shipping to confirm acceptance. Specifications are compiled from multiple sources and provided for convenience; always verify fit, tolerances, and requirements in the official spec sheets and applicable repair manuals/IPCs before purchase. If specific documentation (e.g., 8130 or company CoC/trace) is required, please contact us before ordering. We do not provide usage/support guidance, please refer to the manuals. Ordering the wrong part can extend lead times and result in aircraft downtime.
Specifications
No specifications have been added for this product yet.
Please review the product title, part number, condition, photos, and description before ordering.
Alternate Parts
No alternate parts have been added for this product yet.
Verification Required: Alternate, equivalent, superseded, and manufacturer-reference parts must be verified for part number accuracy, aircraft configuration, documentation requirements, and suitability before purchase or use.
Additional Information
Before ordering, please review the product title, part number, condition, quantity, unit of measure, photos, documentation notes, and any listed alternate part numbers.
Condition & Documentation
Only the condition and documentation shown or stated on this product listing should be expected with the order. Company CoC, Manufacturer CoC, trace, FAA Form 8130-3, tags, or other paperwork should only be expected when clearly listed.
Part Number Verification
Aircraft parts and hardware can look similar while differing by dash number, suffix, material, finish, dimensions, certification, or application. Customers are responsible for confirming the correct part number and suitability before purchase or use.
Shipping & Ordering
Orders are generally processed within 24 business hours when possible. Orders with customer-provided shipping accounts, tax-exempt requests, missing information, special handling, or documentation questions may require review before shipment.
Certification & Conditions Guide | Shipping & Ordering | Contact AVBOX US
Only logged in customers who have purchased this product may leave a review.
Need Help Verifying This Part?
Send us the part number, quantity needed, documentation requirements, and aircraft or application details when available. We can help review the information shown in the listing before you order.






50-012-15N400 - UNION, TEE
324047 - TERMINAL, RING
65-53433-15 - FITTING
CR3242-6-05 - RIVET, BLIND
65-53433-13 - FITTING
AN3H15A - BOLT, MACHINE
524708 - FITTING
LJ16496 - PLUG
576584 - COUPLING
NAS1351-3-8P - SCREW, CAP, SOCKET HEAD
CR3243-4-07 - RIVET, BLIND
NAS1216-4-15 - SCREW
AN4H3A - BOLT, MACHINE
CR3243-4-3 - RIVET, BLIND
CR3243-4-04 - RIVET, BLIND
CR3553-6-1 - RIVET, BLIND
CR3553-6-07 - RIVET, BLIND
NAS1351-3-38 - BOLT, SHEAR
AS1007W0606 - UNION, TUBE, MACHINE
65-70913-1 - FITTING
CR9162-4-6 - RIVET, BLIND
AN4-12A - BOLT, MACHINE
CR3242-6-07 - RIVET, BLIND
CR3553-5-01 - RIVET, BLIND
120-104-7-1200 - SEAL
10-2737-67 - SEAL
CR3243-4-09 - RIVET, BLIND
1501328-2 - BELLOW
CR3553-6-6 - RIVET, BLIND
NAS1351-3LN12P - SCREW, CAP, SOCKET HEAD
CR3553-4-2 - RIVET, BLIND
CR3553-5-02 - RIVET, BLIND
CR9162-4-1 - RIVET, BLIND
CR9162-4-5 - RIVET, BLIND
CR3242-6-6 - RIVET, BLIND
CR3242-8-07 - RIVET, BLIND
320563 - TERMINAL, RING
CR3553-6-3 - RIVET, BLIND
CR3553-5-05 - RIVET, BLIND
CR3553-6-8 - RIVET, BLIND
CR3242-5-9 - RIVET, BLIND
35108 - TERMINAL, RING
NAS1351-3-32 - SCREW, CAP, SOCKET HEAD
GTR1004-22C - ADAPTER
CR3242-8-5 - RIVET, BLIND
CR3242-6-8 - RIVET, BLIND
Reviews
There are no reviews yet.