The Cover,electrical Relay, cataloged under National Stock Number 5945-00-549-4980, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lucent Technologies Inc Corporate Headquarters. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5945-00-549-4980 |
| Primary Part Number | U3RELAY |
| Item Name | Cover,electrical Relay |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Lucent Technologies Inc Corporate Headquarters |
| Status | ACTIVE |
| Mounting Configuration | FOUR HOLES ON 1.750 IN. BY 1.500 IN. MTG CENTERS IN |
| Material | ALUMINUM |
| 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 |
|---|---|
| U3RELAY PRIMARY | Lucent Technologies Inc Corporate Headquarters (USA) |
| U3 | Lucent Technologies Inc Corporate Headquarters (USA) |
| Reference | Meaning |
|---|---|
| U3 | 5/9 Secondary reference At and T Corp |
| U3 | 5/9 Secondary reference American Telephone and Telegraph Co |
| U3RELAY | 5/9 Secondary reference American Telephone and Telegraph Co |
| U3RELAY | 3/9 Design control — primary reference Lucent Technologies Inc Dba Federal Marketing Group |
| U3 | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
NSN 5945-00-549-4980 is a Cover,electrical Relay, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-549-4980 has 2 manufacturer part numbers on file: U3RELAY (Lucent Technologies Inc Corporate Headquarters), U3 (Lucent Technologies Inc Corporate Headquarters).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-359-2313, 5962-01-662-3178. Verify interchangeability with system specifications before substitution.
Key specifications for U3RELAY: Overall Height: 1.4062 INCHES NOMINAL IN; Overall Length: 4.2656 INCHES NOMINAL IN; Overall Width: 1.6562 INCHES NOMINAL IN; Mounting Configuration: FOUR HOLES ON 1.750 IN. BY 1.500 IN. MTG CENTERS IN. 2 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.