The Washer,spring Tension, cataloged under National Stock Number 5310-01-077-1940, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Barnes Group Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-077-1940 |
| Primary Part Number | U375-0110 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Barnes Group Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Outside Diameter | 0.725 INCHES MINIMUM AND 0.725 INCHES MINIMUM AND 0.745 INCHES MAXIMUM0.745 INCHES MAXIMUM IN |
| Material Thickness | 0.001 INCHES MINIMUM AND 0.001 INCHES MINIMUM AND 0.021 INCHES MAXIMUM0.021 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 1075 OVERALL |
| Hole Diameter | 0.385 INCHES MINIMUM AND 0.385 INCHES MINIMUM AND 0.400 INCHES MAXIMUM0.400 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 |
|---|---|
| U375-0110 PRIMARY | Barnes Group Inc (USA) |
| Reference | Meaning |
|---|---|
| 11749109 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| U375-0110 | 5/2 Secondary reference U.S. Government activity |
| 5189735-002 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-077-1940 is a Washer,spring Tension, manufactured by Barnes Group Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-077-1940 has 1 manufacturer part number on file: U375-0110 (Barnes Group Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-548-8672. Verify interchangeability with system specifications before substitution.
Key specifications for U375-0110: Overall Height: 0.119 INCHES MINIMUM AND 0.119 INCHES MINIMUM AND 0.139 INCHES MAXIMUM0.139 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Outside Diameter: 0.725 INCHES MINIMUM AND 0.725 INCHES MINIMUM AND 0.745 INCHES MAXIMUM0.745 INCHES MAXIMUM IN; Material Thickness: 0.001 INCHES MINIMUM AND 0.001 INCHES MINIMUM AND 0.021 INCHES MAXIMUM0.021 INCHES MAXIMUM IN. 6 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.