The Washer,spring Tension, cataloged under National Stock Number 5310-00-244-4002, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-244-4002 |
| Primary Part Number | HS4105-134 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Heat Treatment | AS FABRICATED |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Style Designator | SPRING TENSION |
| Material Document and Classification | MIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.964 INCHES MINIMUM AND 1.974 INCHES MAXIMUM IN |
| Material Thickness | 0.0981 INCHES MINIMUM AND 0.0985 INCHES MAXIMUM IN |
| Color | BLUE OVERALL |
| Material | STEEL COMP 1095 OVERALL |
| Hole Diameter | 0.995 INCHES MINIMUM AND 1.005 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 |
|---|---|
| HS4105-134 PRIMARY | The Boeing Company (USA) |
| HS4105-134 | Bearing Engineers Inc Dba Motion Solutions (USA) |
| Reference | Meaning |
|---|---|
| HS4105-134 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| OSS4105-134 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corp Div Weapon System |
| 532157-13 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| BS50-25-4-2-5 | 5/9 Secondary reference Bearing Engineers Inc Dba Motion Solutions |
| OSS4105-134 | 5/9 Secondary reference Alliant Techsystems Operations Llc |
NSN 5310-00-244-4002 is a Washer,spring Tension, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-244-4002 has 2 manufacturer part numbers on file: HS4105-134 (The Boeing Company), HS4105-134 (Bearing Engineers Inc Dba Motion Solutions).
Key specifications for HS4105-134: Overall Height: 0.1505 INCHES MINIMUM AND 0.1565 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATED; Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Style Designator: SPRING TENSION. 9 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.