The Washer,flat, cataloged under National Stock Number 5310-00-855-6542, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kidde Technologies, Inc Div Kidde Aerospace and Defense. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-855-6542 |
| Primary Part Number | 211075 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kidde Technologies, Inc Div Kidde Aerospace and Defense |
| Status | ACTIVE |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | LEAD OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.960 INCHES NOMINAL IN |
| Thickness | 0.035 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 |
|---|---|
| 211075 PRIMARY | Kidde Technologies, Inc Div Kidde Aerospace and Defense (USA) |
| Reference | Meaning |
|---|---|
| 211075 | 5/9 Secondary reference Kidde-Fenwal, Llc |
| 211075 | 5/9 Secondary reference Kidde Inc Walter Kidde Div Portable Cylinder Opns |
NSN 5310-00-855-6542 is a Washer,flat, manufactured by Kidde Technologies, Inc Div Kidde Aerospace and Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-855-6542 has 1 manufacturer part number on file: 211075 (Kidde Technologies, Inc Div Kidde Aerospace and Defense).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-021-3708. Verify interchangeability with system specifications before substitution.
Key specifications for 211075: Overall Diameter: 1.250 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: LEAD 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.