PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A28381-002Union,pipe

Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies · NSN 4730-01-102-7796 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-102-7796 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-102-7796. Primary manufacturer part number: A28381-002.
Features
  • Union,pipe — FSC 4730
  • Seat Type: RECESSED
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Material: COPPER ALLOY OVERALL
  • Thread Series Designator: NPT ALL ENDS
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Nominal Thread Size: 0.250 INCHES ALL ENDS IN
  • 4 verified cross-references
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Union,pipe, cataloged under National Stock Number 4730-01-102-7796, 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 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-102-7796
Primary Part NumberA28381-002
Item NameUnion,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSpx Corporation Dba Dielectric Communications Div Spx Communication Technologies
StatusACTIVE
Seat TypeRECESSED
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
MaterialCOPPER ALLOY OVERALL
Thread Series DesignatorNPT ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Nominal Thread Size0.250 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3120-00-374-9739220896 INTERCHANGEABLE
Bearing Half,sleeve
Brinkley Technology Group Llc Dba Hercules Manufacturing
5985-00-839-4406810001-439 INTERCHANGEABLE
Attenuator,fixed
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
3040-01-191-272628381 INTERCHANGEABLE
Head,linear Actuating Cylinder
Moog Inc. Dba Ampac-Isp Corp
5977-01-225-62083733 001 000 INTERCHANGEABLE
Slip Ring Assembly
Moog Inc.
5310-01-333-275628381 INTERCHANGEABLE
Washer,flat
Stanadyne Corporation Dba Stanadyne Diesel Systems
Cross-Reference Index
Part NumberManufacturer
A28381-002 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
28381 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
28381-2 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
NU-250 Environment-One Corporation (USA)
Related Parts
3120-00-374-9739INTERCHANGEABLE
BEARING HALF,SLEEVE
220896
5985-00-839-4406INTERCHANGEABLE
ATTENUATOR,FIXED
810001-439
3040-01-191-2726INTERCHANGEABLE
HEAD,LINEAR ACTUATING CYLINDER
28381
5977-01-225-6208INTERCHANGEABLE
SLIP RING ASSEMBLY
3733 001 000
5310-01-333-2756INTERCHANGEABLE
WASHER,FLAT
28381

Frequently Asked Questions

What is NSN 4730-01-102-7796?

NSN 4730-01-102-7796 is a Union,pipe, manufactured by Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-102-7796?

NSN 4730-01-102-7796 has 4 cross-referenced part numbers: A28381-002 (Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies), 28381 (Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies), 28381-2 (Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies), NU-250 (Environment-One Corporation).

What NSN replaces 4730-01-102-7796?

There are 5 known substitutes for 4730-01-102-7796: 3120-00-374-9739, 5985-00-839-4406, 3040-01-191-2726 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A28381-002?

Key specifications for A28381-002: Seat Type: RECESSED; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Material: COPPER ALLOY OVERALL; Thread Series Designator: NPT ALL ENDS. 6 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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