The Washer,spring Tension, cataloged under National Stock Number 5310-01-378-7956, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Smalley Steel Ring Co.. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-378-7956 |
| Primary Part Number | 215-B-38 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ACES 16+50 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SPRING TENSION |
| Outside Diameter | 1.957 INCHES MINIMUM AND 1.997 INCHES MAXIMUM IN |
| Material Thickness | 0.0175 INCHES MINIMUM AND 0.0205 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 631 OVERALL |
| Hole Diameter | 1.814 INCHES MINIMUM AND 1.854 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 |
|---|---|
| 215-B-38 PRIMARY | Smalley Steel Ring Co. (USA) |
| AE14656-079 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
NSN 5310-01-378-7956 is a Washer,spring Tension, manufactured by Smalley Steel Ring Co., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-378-7956 has 2 manufacturer part numbers on file: 215-B-38 (Smalley Steel Ring Co.), AE14656-079 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
Key specifications for 215-B-38: Overall Height: 0.200 INCHES NOMINAL IN; Surface Treatment Document and Classification: ACES 16+50 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SPRING TENSION; Outside Diameter: 1.957 INCHES MINIMUM AND 1.997 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.