The Washer,convex, cataloged under National Stock Number 5310-00-596-4737, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 5 specifications, 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-596-4737 |
| Primary Part Number | 277A2 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| Style Designator | CONVEX |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| Material Thickness | 0.016 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.189 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 |
|---|---|
| 277A2 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
NSN 5310-00-596-4737 is a Washer,convex, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-596-4737 has 1 manufacturer part number on file: 277A2 (Bae Systems Information and Electronic Systems Integration Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5365-00-671-4525, 4310-01-391-4226. Verify interchangeability with system specifications before substitution.
Key specifications for 277A2: Style Designator: CONVEX; Outside Diameter: 0.375 INCHES NOMINAL IN; Material Thickness: 0.016 INCHES NOMINAL IN; Material: STEEL OVERALL. 5 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.