The Washer,spring Tension, cataloged under National Stock Number 5310-01-086-4930, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-086-4930 |
| Primary Part Number | RD53172-1 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Material Document and Classification | AMS 5120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.118 INCHES MINIMUM AND 1.128 INCHES MAXIMUM IN |
| Material Thickness | 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| Material | STEEL COMP 1074 OVERALL |
| Hole Diameter | 0.688 INCHES MINIMUM AND 0.698 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 | F |
| Part Number | Manufacturer |
|---|---|
| RD53172-1 | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| Reference | Meaning |
|---|---|
| RD53172-1 | 5/9 Secondary reference Associated Spring Us, Llc Div Corry |
| RD53172-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-086-4930 is a Washer,spring Tension, manufactured by Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-086-4930 has 1 manufacturer part number on file: RD53172-1 (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec).
Key specifications for RD53172-1: Overall Height: 0.070 INCHES MINIMUM IN; Style Designator: SPRING TENSION; Material Document and Classification: AMS 5120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.118 INCHES MINIMUM AND 1.128 INCHES MAXIMUM IN. 6 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.