PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS5174-0604Reducer,boss

Sae International Dba Sae International · NSN 4730-00-187-3600 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-187-3600 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-187-3600. Primary manufacturer part number: AS5174-0604.
Features
  • Reducer,boss — FSC 4730
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Specification/standard Data: 88044-AN919 GOVERNMENT STANDARD
  • Surface Treatment: CADMIUM OVERALL
  • Material: STEEL COMP 1137 OVERALL
  • Specification/standard Data: 88044-AN919 GOVERNMENT STANDARD
  • Connection Style: FLARED W/ GASKET SEAL (BOSS) ALL ENDS
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Applications requiring Steel Comp 1137 Overall construction
General Description

The Reducer,boss, cataloged under National Stock Number 4730-00-187-3600, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-187-3600
Primary Part NumberAS5174-0604
Item NameReducer,boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Specification/standard Data88044-AN919 GOVERNMENT STANDARD
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL COMP 1137 OVERALL
Specification/standard Data88044-AN919 GOVERNMENT STANDARD
Connection StyleFLARED W/ GASKET SEAL (BOSS) ALL ENDS
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Nominal Overall Length1.406 INCHES IN
Nominal Thread Size0.438 INCHES SECOND END IN
Nominal Thread Size0.562 INCHES FIRST END IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
Nominal Overall Length1.406 INCHES IN
Connection TypeTHREADED EXTERNAL BOSS ALL ENDS
MaterialSTEEL COMP 1137 OVERALL
Nominal Thread Size0.438 INCHES SECOND END IN
Surface TreatmentCADMIUM OVERALL
Reducer TypeCONCENTRIC
Thread Class3A ALL ENDS A
Thread Series DesignatorUNF SECOND END
Thread Series DesignatorUNF SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-805-5097 INTERCHANGEABLE
Reducer,tube
4820-01-220-178981750-1 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Cross-Reference Index
Part NumberManufacturer
AS5174-0604 Society of Automotive Engineers Inc (USA)
AN919-6 Air Associates Inc (USA)
451-0468 Anchor Swan Corp Sub of Amerace Corp (USA)
AN919-6 Satair A/s (DNK)
AN919-6 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
A919-6 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
MS24399-7 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
A919-6 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
6-4 070101CA Society of Automotive Engineers Inc (USA)
AN919-6 Hydro-Fitting Manufacturing Corporation (USA)
MIL-F-5509A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AN919-6 Faber Enterprises, Inc. Div Faber Enterprise Inc (USA)
4730PL2126350 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AS5174 Sae International Dba Sae International (USA)
AS5174-0604 PRIMARY Sae International Dba Sae International (USA)
AS5174 Society of Automotive Engineers Inc (USA)
SAE-AS4841 Sae International Dba Sae International (USA)
817501 American Hoist and Derrick Co
AN919-6 Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
AN919-6 Mission Systems Davenport Inc. (USA)
Related Parts
4730-00-805-5097INTERCHANGEABLE
REDUCER,TUBE
4820-01-220-1789INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
81750-1

Frequently Asked Questions

What is NSN 4730-00-187-3600?

NSN 4730-00-187-3600 is a Reducer,boss, manufactured by Sae International Dba Sae International, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-187-3600?

NSN 4730-00-187-3600 has 25 cross-referenced part numbers: AS5174-0604 (Society of Automotive Engineers Inc), AN919-6 (Air Associates Inc), 451-0468 (Anchor Swan Corp Sub of Amerace Corp), AN919-6 (Satair A/s), AN919-6 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution) and 20 more.

What NSN replaces 4730-00-187-3600?

There are 2 known substitutes for 4730-00-187-3600: 4730-00-805-5097, 4820-01-220-1789. Verify interchangeability with system specifications before substitution.

What are the specifications of AS5174-0604?

Key specifications for AS5174-0604: Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Specification/standard Data: 88044-AN919 GOVERNMENT STANDARD; Surface Treatment: CADMIUM OVERALL; Material: STEEL COMP 1137 OVERALL. 21 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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