The Shim,compressor, cataloged under National Stock Number 1660-01-474-6450, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 1660-01-474-6450 |
| Primary Part Number | 814176-2 |
| Item Name | Shim,compressor |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Overall Diameter | 6.700 INCHES NOMINAL 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 |
|---|---|
| 814176-2 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 814176 | D/9 Drawing number reference only Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 1660-01-474-6450 is a Shim,compressor, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-474-6450 has 1 manufacturer part number on file: 814176-2 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
5 possible matches (shared part number, not a government interchangeability claim): 1660-01-474-6452, 1660-01-474-6453, 1660-01-474-6457. Verify interchangeability with system specifications before substitution.
Key specifications for 814176-2: Overall Height: 0.012 INCHES NOMINAL IN; Overall Diameter: 6.700 INCHES NOMINAL IN; Special Features: INSIDE DIAMETER 4.320 IN;13-0.277 IN. DIAMETER HOLES EQUALLY SPACED WITH 13 SLOTS SPACED INBETWEEN THE HOLES;13 SLOTS EQUALLY SPACED 0.250 FROM INSIDE DIAMETER;NEXT HIGHER ASSEMBLY IS 1660-01-454-6710;MATERIAL IS AMS 5519 OR MIL-S-5059 CL 301 FULL HARD PER HS178;HT TR IN; End Item Identification: P/N 814291-6 REFRIGERATION PACKAGE. 1 specification is 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.