The Washer,saddle, cataloged under National Stock Number 5310-01-131-5507, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-131-5507 |
| Primary Part Number | SS4411-08S117 |
| Item Name | Washer,saddle |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE AND TT-P-1757 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Material Thickness | 0.035 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND PRIMER OVERALL |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 0.250 INCHES MINIMUM AND 0.260 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 |
|---|---|
| SS4411-08S117 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| SS4411-088117 | C/1 Advisory reference — outside the item-of-supply concept Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 5310-01-131-5507 is a Washer,saddle, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-131-5507 has 1 manufacturer part number on file: SS4411-08S117 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for SS4411-08S117: Surface Treatment Document and Classification: QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE AND TT-P-1757 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Overall Length: 0.500 INCHES NOMINAL IN; Overall Width: 0.500 INCHES NOMINAL IN; Material Thickness: 0.035 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.