The Washer,spring Tension, cataloged under National Stock Number 5310-01-128-6689, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-128-6689 |
| Primary Part Number | 2774330-101 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ES F59-2,FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5596 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Material Thickness | 0.0025 INCHES MINIMUM AND 0.0035 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | NICKEL ALLOY 718 OVERALL |
| Hole Diameter | 0.135 INCHES MINIMUM AND 0.145 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 |
|---|---|
| 2774330-101 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 10109504 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2774330-101 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-01-128-6689 is a Washer,spring Tension, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-128-6689 has 1 manufacturer part number on file: 2774330-101 (Parker-Hannifin Corporation Dba Pneutronics).
Key specifications for 2774330-101: Overall Height: 0.026 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ES F59-2,FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: AMS 5596 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.245 INCHES MINIMUM AND 0.250 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.