The Washer,flat, cataloged under National Stock Number 5310-00-762-6547, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems Former Guidance Systems Div. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-762-6547 |
| Primary Part Number | 1813916-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems Former Guidance Systems Div |
| Status | ACTIVE |
| Overall Diameter | 0.781 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | BERYLLIUM AND COPPER OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.328 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 |
|---|---|
| 1813916-1 | American Beryllia Inc (USA) |
| 1813916-1 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Guidance Systems Div (USA) |
| BMT1 | American Beryllia Inc (USA) |
| Reference | Meaning |
|---|---|
| 21C813-002 | C/1 Advisory reference — outside the item-of-supply concept Ail Systems Inc Sub of Eaton Corp |
| BMT-10 | C/1 Advisory reference — outside the item-of-supply concept American Beryllia Inc |
| BMT1 | 5/9 Secondary reference General Ceramics Inc National Beryllia Div |
NSN 5310-00-762-6547 is a Washer,flat, manufactured by Honeywell Intl Inc Defense Avionics Systems Former Guidance Systems Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-762-6547 has 3 manufacturer part numbers on file: 1813916-1 (American Beryllia Inc), 1813916-1 (Honeywell Intl Inc Defense Avionics Systems Former Guidance Systems Div), BMT1 (American Beryllia Inc).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-302-3398. Verify interchangeability with system specifications before substitution.
Key specifications for 1813916-1: Overall Diameter: 0.781 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: BERYLLIUM AND COPPER 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.