The Plug,spring Retainer, cataloged under National Stock Number 4730-00-974-0142, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-974-0142 |
| Primary Part Number | 557498 |
| Item Name | Plug,spring Retainer |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY AMS4150,OUTSIDE SURFACE,ANODIC TREATMENT MIL-A-8625 TYPE 1,ROCKWELL B SCALE 45 MIN HARDNESS,0.250 IN. HEAD H,0.185 IN. O/A LG,0.370 IN. THD LG,0.555 IN. BODY CORE DP,0.262 IN. MIN,0.263 IN. MAX BODY CORE DIA,HEXAGON DRIVE END,WITH 3 SLOTS 0.010 IN. DIA,0.500-20 UNF CLASS 2A THD,0.031 IN. SEAT RADIUS,PLAIN END CONNECTION 0.340 IN. DIA,0.105 IN. LG 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 |
|---|---|
| 557498 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 4730-00-974-0142 is a Plug,spring Retainer, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-974-0142 has 1 manufacturer part number on file: 557498 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 557498: General Characteristics Item Description: ALUMINUM ALLOY AMS4150,OUTSIDE SURFACE,ANODIC TREATMENT MIL-A-8625 TYPE 1,ROCKWELL B SCALE 45 MIN HARDNESS,0.250 IN. HEAD H,0.185 IN. O/A LG,0.370 IN. THD LG,0.555 IN. BODY CORE DP,0.262 IN. MIN,0.263 IN. MAX BODY CORE DIA,HEXAGON DRIVE END,WITH 3 SLOTS 0.010 IN. DIA,0.500-20 UNF CLASS 2A THD,0.031 IN. SEAT RADIUS,PLAIN END CONNECTION 0.340 IN. DIA,0.105 IN. LG 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.