The Washer,flat, cataloged under National Stock Number 5310-01-276-9778, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Chicago Steel Tape Co Inc Berger Instruments Co Inc. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-276-9778 |
| Primary Part Number | 10316 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Chicago Steel Tape Co Inc Berger Instruments Co Inc |
| Status | ACTIVE |
| Overall Diameter | 0.401 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | RUBBER OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.265 INCHES NOMINAL IN |
| Thickness | 0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM 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 |
|---|---|
| 10316 PRIMARY | Chicago Steel Tape Co Inc Berger Instruments Co Inc (USA) |
NSN 5310-01-276-9778 is a Washer,flat, manufactured by Chicago Steel Tape Co Inc Berger Instruments Co Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-276-9778 has 1 manufacturer part number on file: 10316 (Chicago Steel Tape Co Inc Berger Instruments Co Inc).
Key specifications for 10316: Overall Diameter: 0.401 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: RUBBER OVERALL. 7 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.