The Washer,flat, cataloged under National Stock Number 5310-00-290-7868, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bath Iron Works Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-290-7868 |
| Primary Part Number | M36538-3PC620-28 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bath Iron Works Corporation |
| Status | ACTIVE |
| Overall Diameter | 1.625 INCHES NOMINAL IN |
| Hardness Rating | 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | 417,TY S,CL SC,GR SC615 MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Minimum Tensile Strength | 1500 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | RUBBER SYNTHETIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.000 INCHES NOMINAL IN |
| Thickness | 0.062 INCHES NOMINAL IN |
| 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 |
|---|---|
| M36538-3PC620-28 PRIMARY | Bath Iron Works Corporation (USA) |
| M36538-3BALT1PC620-29 PRIMARY | Bath Iron Works Corporation (USA) |
| M36538-3AALT1PC620-28 PRIMARY | Bath Iron Works Corporation (USA) |
| M36538-3CPC620-28 PRIMARY | Bath Iron Works Corporation (USA) |
NSN 5310-00-290-7868 is a Washer,flat, manufactured by Bath Iron Works Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-290-7868 has 4 manufacturer part numbers on file: M36538-3PC620-28 (Bath Iron Works Corporation), M36538-3BALT1PC620-29 (Bath Iron Works Corporation), M36538-3AALT1PC620-28 (Bath Iron Works Corporation), M36538-3CPC620-28 (Bath Iron Works Corporation).
Key specifications for M36538-3PC620-28: Overall Diameter: 1.625 INCHES NOMINAL IN; Hardness Rating: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: 417,TY S,CL SC,GR SC615 MIL STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 specifications are 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.