PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A733S-37CFBNipple,pipe

American Society for Testing and Materials Dba Astm International · NSN 4730-00-277-6985 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-277-6985 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-277-6985. Primary manufacturer part number: A733S-37CFB.
Features
  • Nipple,pipe — FSC 4730
  • Specification/standard Data: 81346-ASTM A733-4 1/2-1/4 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Style Designator: CLOSE
  • Pipe Wall Thickness Designation for Which Designed: SCHEDULE 40 ALL ENDS
  • Nominal Thread Size: 0.250 INCHES ALL ENDS IN
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: CLQSE TYPE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Nipple,pipe, cataloged under National Stock Number 4730-00-277-6985, 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 American Society for Testing and Materials Dba Astm International. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-277-6985
Primary Part NumberA733S-37CFB
Item NameNipple,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusCANCELLED
Specification/standard Data81346-ASTM A733-4 1/2-1/4 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorCLOSE
Pipe Wall Thickness Designation for Which DesignedSCHEDULE 40 ALL ENDS
Nominal Thread Size0.250 INCHES ALL ENDS IN
Connection StylePLAIN (PIPE) ALL ENDS
MaterialSTEEL OVERALL
Nondefinitive Spec/std DataCLQSE TYPE
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Material Document and ClassificationASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorNPT ALL ENDS
Nominal Overall Length4.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-156-684416X730 INTERCHANGEABLE
Bearing,ball,annular
Garwood/feller Inc Garwood Winch Div
5310-00-164-1976203267 INTERCHANGEABLE
Washer,differential
Renk America Llc Div Renk America
4730-00-188-185503262 INTERCHANGEABLE
Nipple,pipe
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4730-00-196-1475 INTERCHANGEABLE
Nipple,pipe
4730-00-196-14763240 INTERCHANGEABLE
Nipple,pipe
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4730-00-196-1504A733S-75CFG INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
4730-00-196-1522 INTERCHANGEABLE
Nipple,pipe
4730-00-196-1538A733S-17CFG INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
4730-00-196-1559 INTERCHANGEABLE
Nipple,pipe
4730-00-253-634945-5600-007-080 INTERCHANGEABLE
Nipple,pipe
Chief of Engineers Dept of Army
Cross-Reference Index
Part NumberManufacturer
ASTM A733-4 1/2-1/4 American Society for Testing and Materials Dba Astm International (USA)
A733S-37CFB PRIMARY American Society for Testing and Materials Dba Astm International (USA)
121210 Rolls-Royce Solutions America Inc (USA)
3267 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
14412 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
03267 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
HF1181 Hobart Bros Co (USA)
BB17-43 Barber-Greene Co (USA)
917153 Aqua-Chem Inc Cleaver-Brooks Div (USA)
WWN351TYPEA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ASTM-A733 American Society for Testing and Materials Dba Astm International (USA)
121210 General Motors Corp (USA)
45-5600-003-045 Chief of Engineers Dept of Army (USA)
P7094 Bomag Usa Sub of United Dominion Industries Ltd (USA)
Related Parts
3110-00-156-6844INTERCHANGEABLE
BEARING,BALL,ANNULAR
16X730
5310-00-164-1976INTERCHANGEABLE
WASHER,DIFFERENTIAL
203267
4730-00-188-1855INTERCHANGEABLE
NIPPLE,PIPE
03262
4730-00-196-1475INTERCHANGEABLE
NIPPLE,PIPE
4730-00-196-1476INTERCHANGEABLE
NIPPLE,PIPE
3240
4730-00-196-1504INTERCHANGEABLE
NIPPLE,PIPE
A733S-75CFG
4730-00-196-1522INTERCHANGEABLE
NIPPLE,PIPE
4730-00-196-1538INTERCHANGEABLE
NIPPLE,PIPE
A733S-17CFG
4730-00-196-1559INTERCHANGEABLE
NIPPLE,PIPE
4730-00-253-6349INTERCHANGEABLE
NIPPLE,PIPE
45-5600-007-080
4730-00-277-9985INTERCHANGEABLE
NIPPLE,PIPE
A733S-224CFB
4730-00-278-0063INTERCHANGEABLE
NIPPLE,PIPE

Frequently Asked Questions

What is NSN 4730-00-277-6985?

NSN 4730-00-277-6985 is a Nipple,pipe, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-277-6985?

NSN 4730-00-277-6985 has 14 cross-referenced part numbers: ASTM A733-4 1/2-1/4 (American Society for Testing and Materials Dba Astm International), A733S-37CFB (American Society for Testing and Materials Dba Astm International), 121210 (Rolls-Royce Solutions America Inc), 3267 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), 14412 (Curtiss-Wright Electro-Mechanical Corporation Div Epd) and 9 more.

What NSN replaces 4730-00-277-6985?

There are 12 known substitutes for 4730-00-277-6985: 3110-00-156-6844, 5310-00-164-1976, 4730-00-188-1855 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A733S-37CFB?

Key specifications for A733S-37CFB: Specification/standard Data: 81346-ASTM A733-4 1/2-1/4 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Style Designator: CLOSE; Pipe Wall Thickness Designation for Which Designed: SCHEDULE 40 ALL ENDS; Nominal Thread Size: 0.250 INCHES ALL ENDS IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-277-6985 still in active supply?

NSN 4730-00-277-6985 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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