The Washer,spring Tension, cataloged under National Stock Number 5310-00-445-1111, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-445-1111 |
| Primary Part Number | 543-2155-002 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Material Document and Classification | QQ-C-533 TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.031 INCHES NOMINAL IN |
| Material Thickness | 0.011 INCHES MINIMUM AND 0.013 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.755 INCHES MINIMUM AND 0.785 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 |
|---|---|
| 130063 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 543-2155-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 543-2155-002 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5310-00-445-1111 is a Washer,spring Tension, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-445-1111 has 2 manufacturer part numbers on file: 130063 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 543-2155-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
3 possible matches (shared part number, not a government interchangeability claim): 3040-00-872-3401, 4130-01-460-8508, 5995-01-540-3560. Verify interchangeability with system specifications before substitution.
Key specifications for 543-2155-002: Overall Height: 0.179 INCHES NOMINAL IN; Material Document and Classification: QQ-C-533 TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.031 INCHES NOMINAL IN; Material Thickness: 0.011 INCHES MINIMUM AND 0.013 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.