PartsTable TECHNICAL DATA SHEET
NSN 4730-00-174-2987Government record, cited

Reducer, Boss4730-00-174-2987

NSN 4730-00-174-2987 · NIIN 001742987 · Part number 10246660
Fabrication Specialty Inc Dba Fabrication Specialty Inc · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 28548
Government record, cited
NSN 4730-00-174-2987 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-174-2987. Manufacturer of record part number: 10246660.
Also searched as  4730-00-174-2987 · 4730001742987 · NIIN 001742987 · 00-174-2987 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 28548 · 10246660
Nearby stock numbers  ·
Features
  • Reducer,boss — FSC 4730
  • Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
  • Connection Style: GASKET SEAL (BOSS) FIRST END
  • Nominal Overall Length: 1.300 INCHES IN
  • Connection Type: THREADED INTERNAL BOSS FIRST END
  • Connection Type: THREADED EXTERNAL BOSS SECOND END
  • Nominal Thread Size: 0.750 INCHES SECOND END IN
  • Nominal Thread Size: 1.000 INCHES FIRST END IN
Identification
  • NSN: 4730-00-174-2987
  • NIIN: 001742987
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 10246660
  • Manufacturer: Fabrication Specialty Inc Dba Fabrication Specialty Inc
General Description

The Reducer,boss, cataloged under National Stock Number 4730-00-174-2987, 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 Fabrication Specialty Inc Dba Fabrication Specialty Inc. Government technical data includes 13 specifications, 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-174-2987
Primary Part Number10246660
Item NameReducer,boss
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerFabrication Specialty Inc Dba Fabrication Specialty Inc
StatusACTIVE
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Connection StyleGASKET SEAL (BOSS) FIRST END
Nominal Overall Length1.300 INCHES IN
Connection TypeTHREADED INTERNAL BOSS FIRST END
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Nominal Thread Size0.750 INCHES SECOND END IN
Nominal Thread Size1.000 INCHES FIRST END IN
Thread Class2A SECOND END A
Thread Class2B FIRST END
MaterialSTEEL COMP 1020 OVERALL
Thread Series DesignatorUNEF FIRST END
Thread Series DesignatorUNF SECOND END
Reducer TypeCONCENTRIC
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
10246660 Us Army Aviation and Missile Command (USA)
10246660 PRIMARY Fabrication Specialty Inc Dba Fabrication Specialty Inc (USA)
No interchangeability data on file.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE

Frequently Asked Questions

What is NSN 4730-00-174-2987?

NSN 4730-00-174-2987 is a Reducer,boss, manufactured by Fabrication Specialty Inc Dba Fabrication Specialty Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-00-174-2987?

NSN 4730-00-174-2987 has 2 manufacturer part numbers on file: 10246660 (Us Army Aviation and Missile Command), 10246660 (Fabrication Specialty Inc Dba Fabrication Specialty Inc).

What are the specifications of 10246660?

Key specifications for 10246660: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: GASKET SEAL (BOSS) FIRST END; Nominal Overall Length: 1.300 INCHES IN; Connection Type: THREADED INTERNAL BOSS FIRST END. 13 specifications are documented in the U.S. Government catalog.

Is NSN 4730-00-174-2987 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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