PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-31ACap,pipe

Insinger Machine Co · NSN 4730-01-148-9329 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-148-9329 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-148-9329. Primary manufacturer part number: D-31A.
Features
  • Cap,pipe — FSC 4730
  • Material: COPPER ALLOY BODY
  • Operating Pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
  • Surface Treatment Document and Classification: QQ-C-320,CL 1,TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Thread Series Designator: NPT INTERNAL
  • Surface Treatment: CHROMATE BODY
  • Connection Style: PLAIN (OPTIONAL END)
  • Head Type: CORED
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Body construction
General Description

The Cap,pipe, cataloged under National Stock Number 4730-01-148-9329, 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 Insinger Machine Co. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-148-9329
Primary Part NumberD-31A
Item NameCap,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerInsinger Machine Co
StatusCANCELLED
MaterialCOPPER ALLOY BODY
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Surface Treatment Document and ClassificationQQ-C-320,CL 1,TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorNPT INTERNAL
Surface TreatmentCHROMATE BODY
Connection StylePLAIN (OPTIONAL END)
Head TypeCORED
Nominal Pipe Size for Which Designed0.500 INCHES IN
Thread DirectionRIGHT-HAND INTERNAL
Material Document and ClassificationWW-P-460 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Thread Size0.500 INCHES INTERNAL IN
Style DesignatorCAP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3110-00-100-8555D31 INTERCHANGEABLE
Bearing,ball,thrust
Gwilliam Company, Inc. Div Ball & Roller Bearing Division
4530-00-394-846441290-1PC43 INTERCHANGEABLE
Diffuser
Puget Sound Commerce Center, Inc.
3610-00-555-9893 INTERCHANGEABLE
Duplicating Machine,spirit Proce
6140-01-502-49738051-160 INTERCHANGEABLE
Battery,storage
Clarios, Llc Dba Clarios Llc Div Military Battery Systems
Cross-Reference Index
Part NumberManufacturer
D-31 Insinger Machine Co (USA)
D-31A PRIMARY Insinger Machine Co (USA)
Related Parts
3110-00-100-8555INTERCHANGEABLE
BEARING,BALL,THRUST
D31
4530-00-394-8464INTERCHANGEABLE
DIFFUSER
41290-1PC43
3610-00-555-9893INTERCHANGEABLE
DUPLICATING MACHINE,SPIRIT PROCE
6140-01-502-4973INTERCHANGEABLE
BATTERY,STORAGE
8051-160

Frequently Asked Questions

What is NSN 4730-01-148-9329?

NSN 4730-01-148-9329 is a Cap,pipe, manufactured by Insinger Machine Co, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-148-9329?

NSN 4730-01-148-9329 has 2 cross-referenced part numbers: D-31 (Insinger Machine Co), D-31A (Insinger Machine Co).

What NSN replaces 4730-01-148-9329?

There are 4 known substitutes for 4730-01-148-9329: 3110-00-100-8555, 4530-00-394-8464, 3610-00-555-9893 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D-31A?

Key specifications for D-31A: Material: COPPER ALLOY BODY; Operating Pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Surface Treatment Document and Classification: QQ-C-320,CL 1,TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series Designator: NPT INTERNAL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-148-9329 still in active supply?

NSN 4730-01-148-9329 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.
PartsTable Design LLC · partstable.com