The Washer,spring Tension, cataloged under National Stock Number 5310-01-271-8402, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-271-8402 |
| Primary Part Number | 5906188-1 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material Document and Classification | AMS 5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.830 INCHES MINIMUM AND 1.850 INCHES MAXIMUM IN |
| Material Thickness | 0.038 INCHES NOMINAL IN |
| Material | STEEL COMP 631 OVERALL |
| Hole Diameter | 1.410 INCHES MINIMUM 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 |
|---|---|
| 5906188-1 PRIMARY | Naval Sea Systems Command (USA) |
| 1929-05 | Smalley Steel Ring Co. (USA) |
| Reference | Meaning |
|---|---|
| SSR1929-04 | 5/9 Secondary reference Smalley Steel Ring Co. |
| SSR1929-05 | C/1 Advisory reference — outside the item-of-supply concept Smalley Steel Ring Co. |
| 6300522 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 6300522-001 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5310-01-271-8402 is a Washer,spring Tension, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-271-8402 has 2 manufacturer part numbers on file: 5906188-1 (Naval Sea Systems Command), 1929-05 (Smalley Steel Ring Co.).
Key specifications for 5906188-1: Overall Height: 0.330 INCHES NOMINAL IN; Material Document and Classification: AMS 5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.830 INCHES MINIMUM AND 1.850 INCHES MAXIMUM IN; Material Thickness: 0.038 INCHES NOMINAL IN. 5 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.