The Washer,seal, cataloged under National Stock Number 5310-01-477-9767, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Textron Aviation Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-477-9767 |
| Primary Part Number | 7500-3/8 |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Textron Aviation Inc |
| Status | ACTIVE |
| Material | RUBBER SEALING ELEMENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7500-3/8 PRIMARY | Textron Aviation Inc (USA) |
| Reference | Meaning |
|---|---|
| 7500-3/8 | 3/9 Design control — primary reference Cessna Aircraft Company Dba Textron Aviation |
NSN 5310-01-477-9767 is a Washer,seal, manufactured by Textron Aviation Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-477-9767 has 1 manufacturer part number on file: 7500-3/8 (Textron Aviation Inc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-571-9672. Verify interchangeability with system specifications before substitution.
Key specifications for 7500-3/8: Special Features: MANUFACTURERS ITEM NAME: THREAD SEAL; METAL WASHER WITH RUBBER SEALMANUFACTURERS ITEM NAME: THREAD SEAL; METAL WASHER WITH RUBBER SEAL; End Item Identification: CESSNA 650, 750, 441, AND 406 AIRCRAFTCESSNA 650, 750, 441, AND 406 AIRCRAFT; Material: RUBBER SEALING ELEMENT. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.