The Pedestal,valve Guide, cataloged under National Stock Number 1660-00-657-4974, 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 Honeywell International, Inc Div Aerospace-Tucson. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-657-4974 |
| Primary Part Number | 136524 |
| Item Name | Pedestal,valve Guide |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| General Characteristics Item Description | CRES PER MIL-S-7720,COMP 303,COND A;2.650 IN. LG O/A;FIRST END 0.500 IN. DIA BY 0.379 IN. ID BY 1.860 IN. DEEP;SECOND END 0.610 IN. DIA W/0.250-20-UNC 3A THD BY 0.540 IN. LG;0.300 IN. THK BY 1.120 IN. WD ACROSS HEX. FLATS W/FOUR 0.138-32 NC-2B THD HOLES THRU A |
| 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 |
|---|---|
| 136524 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 136524 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 136524 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
NSN 1660-00-657-4974 is a Pedestal,valve Guide, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-657-4974 has 1 manufacturer part number on file: 136524 (Honeywell International, Inc Div Aerospace-Tucson).
Key specifications for 136524: General Characteristics Item Description: CRES PER MIL-S-7720,COMP 303,COND A;2.650 IN. LG O/A;FIRST END 0.500 IN. DIA BY 0.379 IN. ID BY 1.860 IN. DEEP;SECOND END 0.610 IN. DIA W/0.250-20-UNC 3A THD BY 0.540 IN. LG;0.300 IN. THK BY 1.120 IN. WD ACROSS HEX. FLATS W/FOUR 0.138-32 NC-2B THD HOLES THRU A. 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.