The Pin Clutch Assembly, cataloged under National Stock Number 4810-00-375-8305, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4810-00-375-8305 |
| Primary Part Number | 551015 |
| Item Name | Pin Clutch Assembly |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; INCLUDES HOUSING AND TWO PINS; ONE PIN FLUSH WITH HOUSING FACE,ONE PIN PROTRUDES 0.125 IN.; 0.250 IN. PIN DIA,1.250 IN. O/A LG; 1.156 IN. HOUSING DIA INCLUDES CAVITY FOR SPRING,1.031 IN. DIA; 0.900 IN. DEEP AND 0.058 IN. DIA HOLE CENTERED IN HOUSING FACE 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 |
|---|---|
| 551015 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 551015 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 4810-00-375-8305 is a Pin Clutch Assembly, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-375-8305 has 1 manufacturer part number on file: 551015 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
1 possible match (shared part number, not a government interchangeability claim): 4820-00-660-8767. Verify interchangeability with system specifications before substitution.
Key specifications for 551015: General Characteristics Item Description: STEEL; INCLUDES HOUSING AND TWO PINS; ONE PIN FLUSH WITH HOUSING FACE,ONE PIN PROTRUDES 0.125 IN.; 0.250 IN. PIN DIA,1.250 IN. O/A LG; 1.156 IN. HOUSING DIA INCLUDES CAVITY FOR SPRING,1.031 IN. DIA; 0.900 IN. DEEP AND 0.058 IN. DIA HOLE CENTERED IN HOUSING FACE IN. 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.