The Washer,spring Tension, cataloged under National Stock Number 5310-01-030-8422, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Allmetal Screw Products Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-030-8422 |
| Primary Part Number | A742B3800 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Allmetal Screw Products Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.780 INCHES MINIMUM AND 0.780 INCHES MINIMUM AND 0.800 INCHES MAXIMUM0.800 INCHES MAXIMUM IN |
| Material Thickness | 0.008 INCHES NOMINAL0.008 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 302 OVERALL |
| Hole Diameter | 0.520 INCHES MINIMUM AND 0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM0.530 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 |
|---|---|
| A742B3800 PRIMARY | Allmetal Screw Products Corp (USA) |
| Reference | Meaning |
|---|---|
| SM-C-771381 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5310-01-030-8422 is a Washer,spring Tension, manufactured by Allmetal Screw Products Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-030-8422 has 1 manufacturer part number on file: A742B3800 (Allmetal Screw Products Corp).
Key specifications for A742B3800: Overall Height: 0.115 INCHES MINIMUM AND 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM0.135 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.780 INCHES MINIMUM AND 0.780 INCHES MINIMUM AND 0.800 INCHES MAXIMUM0.800 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.