The Flange,waveguide, cataloged under National Stock Number 5985-00-977-1171, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-977-1171 |
| Primary Part Number | 10177002 |
| Item Name | Flange,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Flange Inside Height | 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Connecting Hole Diameter | 0.172 INCHES MINIMUM AND 0.178 INCHES MAXIMUM SINGLE FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Inside Width | 0.893 INCHES MINIMUM AND 0.903 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Depth | 0.500 INCHES NOMINAL SINGLE FLANGE IN |
| Material | STEEL CORROSION RESISTING SINGLE FLANGE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Flange Outside Diameter | 2.156 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Style | CONTACT TYPE SINGLE FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10177002 PRIMARY | Us Army Aviation and Missile Command (USA) |
| 10177002 | Bright Lights Usa, Inc Dba Blusa Defense Manufacturing (USA) |
| 10177002 | Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp (USA) |
| 10177002 | Victor Microwave, Inc (USA) |
| 10177002 | Kampi Components Co Inc (USA) |
NSN 5985-00-977-1171 is a Flange,waveguide, manufactured by Us Army Aviation and Missile Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-977-1171 has 5 manufacturer part numbers on file: 10177002 (Us Army Aviation and Missile Command), 10177002 (Bright Lights Usa, Inc Dba Blusa Defense Manufacturing), 10177002 (Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp), 10177002 (Victor Microwave, Inc), 10177002 (Kampi Components Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-077-9724. Verify interchangeability with system specifications before substitution.
Key specifications for 10177002: Flange Inside Height: 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM SINGLE FLANGE IN; Flange Connecting Hole Diameter: 0.172 INCHES MINIMUM AND 0.178 INCHES MAXIMUM SINGLE FLANGE SINGLE CONNECTION FACILITY IN; Flange Inside Width: 0.893 INCHES MINIMUM AND 0.903 INCHES MAXIMUM SINGLE FLANGE IN; Flange Depth: 0.500 INCHES NOMINAL SINGLE FLANGE IN. 8 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-00-977-1171 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.