The Bolt,adjusting,water Throttle, cataloged under National Stock Number 5306-01-166-4710, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Raco Machine Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-166-4710 |
| Primary Part Number | 75A603521-2001 |
| Item Name | Bolt,adjusting,water Throttle |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Raco Machine Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CRES PER AMS 5629 COMP PH13-8MO; HEX HEAD 0.312 IN. W/ACROSS FLATS 0.250 IN. H; 2.250 IN. O/A LG; W/0.250-28UNJF-3A THD STEPPED TO 0.190-32UNJF-3A THD 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 |
|---|---|
| 75A603521-2001 | Raco Machine Inc (USA) |
| 75A603521-2001 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 75A603521-2001 | 5/9 Secondary reference Br Machine Parts Inc |
| 75A603521-2001 | 3/9 Design control — primary reference Pioneer Machine Products Inc. |
| 75A603521-2001 | 5/9 Secondary reference Harlow Aerostructures, Llc |
NSN 5306-01-166-4710 is a Bolt,adjusting,water Throttle, manufactured by Raco Machine Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-166-4710 has 2 manufacturer part numbers on file: 75A603521-2001 (Raco Machine Inc), 75A603521-2001 (The Boeing Company Div Defense).
Key specifications for 75A603521-2001: General Characteristics Item Description: CRES PER AMS 5629 COMP PH13-8MO; HEX HEAD 0.312 IN. W/ACROSS FLATS 0.250 IN. H; 2.250 IN. O/A LG; W/0.250-28UNJF-3A THD STEPPED TO 0.190-32UNJF-3A THD A; End Item Identification: ACFT MODEL AV-8. 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.