PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

57138Parts Kit,valve

Spirax Sarco Inc Dba Spirax Sarco · NSN 4820-01-384-6351 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-384-6351 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-384-6351. Primary manufacturer part number: 57138.
Features
  • Parts Kit,valve — FSC 4820
  • Component Quantity: 4
  • Nonsupply Items and Quantities: CAP GASKET 1; VALVE HEAD 1; SEAT 1; SEAT GASKET 1
  • 1 verified cross-reference
  • Primary manufacturer: Spirax Sarco Inc Dba Spirax Sarco
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Parts Kit,valve, cataloged under National Stock Number 4820-01-384-6351, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-384-6351
Primary Part Number57138
Item NameParts Kit,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusACTIVE
Component Quantity4
Nonsupply Items and QuantitiesCAP GASKET 1; VALVE HEAD 1; SEAT 1; SEAT GASKET 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5120-01-045-4898 INTERCHANGEABLE
Key,socket Head Screw
Cross-Reference Index
Part NumberManufacturer
57138 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
5120-01-045-4898INTERCHANGEABLE
KEY,SOCKET HEAD SCREW

Frequently Asked Questions

What is NSN 4820-01-384-6351?

NSN 4820-01-384-6351 is a Parts Kit,valve, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-384-6351?

NSN 4820-01-384-6351 has 1 cross-referenced part number: 57138 (Spirax Sarco Inc Dba Spirax Sarco).

What NSN replaces 4820-01-384-6351?

There is 1 known substitute for 4820-01-384-6351: 5120-01-045-4898. Verify interchangeability with system specifications before substitution.

What are the specifications of 57138?

Key specifications for 57138: Component Quantity: 4; Nonsupply Items and Quantities: CAP GASKET 1; VALVE HEAD 1; SEAT 1; SEAT GASKET 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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