The Washer,spring Tension, cataloged under National Stock Number 5310-01-453-4722, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Matthew Warren, Inc. Div Maryland Precision Spring. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-453-4722 |
| Primary Part Number | SXAI-145640 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Matthew Warren, Inc. Div Maryland Precision Spring |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SPRING TENSION |
| Material Document and Classification | AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.437 INCHES MINIMUM AND 1.449 INCHES MAXIMUM IN |
| Material Thickness | 0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 631 OVERALL |
| Hole Diameter | 0.563 INCHES MINIMUM AND 0.568 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 |
|---|---|
| SXAI-145640 PRIMARY | Matthew Warren, Inc. Div Maryland Precision Spring (USA) |
| Reference | Meaning |
|---|---|
| 4496 | 3/2 Design control — primary reference U.S. Government activity |
| DAA7271P039 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| SXAI-145640 | 5/9 Secondary reference Rolex Company Dba Rolex Company Div Rolex Company |
NSN 5310-01-453-4722 is a Washer,spring Tension, manufactured by Matthew Warren, Inc. Div Maryland Precision Spring, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-453-4722 has 1 manufacturer part number on file: SXAI-145640 (Matthew Warren, Inc. Div Maryland Precision Spring).
Key specifications for SXAI-145640: Overall Height: 0.069 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SPRING TENSION; Material Document and Classification: AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 8 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.