The Washer,lock, cataloged under National Stock Number 5310-00-325-1847, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Illinois Tool Works 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-325-1847 |
| Primary Part Number | 1926-07 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Illinois Tool Works Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.678 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN |
| Material Thickness | 0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.565 INCHES MINIMUM AND 0.572 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 |
|---|---|
| 1926-07 PRIMARY | Illinois Tool Works Inc (USA) |
| Reference | Meaning |
|---|---|
| 1926-07 | 5/9 Secondary reference Itw Shakeproof Automotive Products |
| 373-0190-010 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5310-00-325-1847 is a Washer,lock, manufactured by Illinois Tool Works Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-325-1847 has 1 manufacturer part number on file: 1926-07 (Illinois Tool Works Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-396-5841. Verify interchangeability with system specifications before substitution.
Key specifications for 1926-07: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.678 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN; Material Thickness: 0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN. 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.