PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43571Parts Kit,steam Trap

Spirax Sarco Inc Dba Spirax Sarco · NSN 4730-00-391-8450 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-391-8450 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-391-8450. Primary manufacturer part number: 43571.
Features
  • Parts Kit,steam Trap — FSC 4730
  • Component Quantity: 6
  • Nonsupply Items and Quantities: VALVE SEAT 1,BALL,FLOW CONTROL 1,RETAINER,BALL FLOW CONTROL 1,WASHER,COPPER 2,SPRING CLIP 1
  • 1 verified cross-reference
  • Primary manufacturer: Spirax Sarco Inc Dba Spirax Sarco
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Parts Kit,steam Trap, cataloged under National Stock Number 4730-00-391-8450, 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 Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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: Active.

Technical Specifications
ParameterValue
NSN4730-00-391-8450
Primary Part Number43571
Item NameParts Kit,steam Trap
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusACTIVE
Component Quantity6
Nonsupply Items and QuantitiesVALVE SEAT 1,BALL,FLOW CONTROL 1,RETAINER,BALL FLOW CONTROL 1,WASHER,COPPER 2,SPRING CLIP 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5845-00-757-327843571 INTERCHANGEABLE
Frame Sweep Generat
L3harris Technologies, Inc. Div Space and Airborne Systems
3130-01-098-835343571 INTERCHANGEABLE
Housing,bearing Unit
Moog Inc.
2530-01-347-7054 INTERCHANGEABLE
Chamber,air Brake
5120-01-355-16325120-00-NIB-0188 INTERCHANGEABLE
Socket,socket Wrench
Beyond Vision Inc Dba Beyond Vision
Cross-Reference Index
Part NumberManufacturer
43571 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
5845-00-757-3278INTERCHANGEABLE
FRAME SWEEP GENERAT
43571
3130-01-098-8353INTERCHANGEABLE
HOUSING,BEARING UNIT
43571
2530-01-347-7054INTERCHANGEABLE
CHAMBER,AIR BRAKE
5120-01-355-1632INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-NIB-0188

Frequently Asked Questions

What is NSN 4730-00-391-8450?

NSN 4730-00-391-8450 is a Parts Kit,steam Trap, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-391-8450?

NSN 4730-00-391-8450 has 1 cross-referenced part number: 43571 (Spirax Sarco Inc Dba Spirax Sarco).

What NSN replaces 4730-00-391-8450?

There are 4 known substitutes for 4730-00-391-8450: 5845-00-757-3278, 3130-01-098-8353, 2530-01-347-7054 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43571?

Key specifications for 43571: Component Quantity: 6; Nonsupply Items and Quantities: VALVE SEAT 1,BALL,FLOW CONTROL 1,RETAINER,BALL FLOW CONTROL 1,WASHER,COPPER 2,SPRING CLIP 1. 2 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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