PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

900C277SUB2PC3Cap,valve

Westinghouse Electric Corp · NSN 4810-00-585-2531 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-585-2531 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-585-2531. Primary manufacturer part number: 900C277SUB2PC3.
Features
  • Cap,valve — FSC 4810
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 9 verified cross-references
  • Primary manufacturer: Westinghouse Electric Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,valve, cataloged under National Stock Number 4810-00-585-2531, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Westinghouse Electric Corp. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-00-585-2531
Primary Part Number900C277SUB2PC3
Item NameCap,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5340-00-050-1593 INTERCHANGEABLE
Plug,expansion
5975-01-126-0020SS703 INTERCHANGEABLE
Plate,wall,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
4820-01-304-6590 INTERCHANGEABLE
Cap,valve
Cross-Reference Index
Part NumberManufacturer
900C277SUB2PC3 Westinghouse Electric Corp (USA)
S703 Crane Co Div Valve Div (USA)
H26218PC53 Crane Co Div Valve Div (USA)
900J768SUB10PC65 Westinghouse Electric Corp (USA)
29926-53 Crane Co Div Valve Div (USA)
900J768PC65 Westinghouse Electric Corp (USA)
29881PC53 Crane Co Div Valve Div (USA)
26218-53A Crane Co Div Valve Div (USA)
29970PC53 Crane Co Div Valve Div (USA)
Related Parts
5340-00-050-1593INTERCHANGEABLE
PLUG,EXPANSION
5975-01-126-0020INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
SS703
4820-01-304-6590INTERCHANGEABLE
CAP,VALVE

Frequently Asked Questions

What is NSN 4810-00-585-2531?

NSN 4810-00-585-2531 is a Cap,valve, manufactured by Westinghouse Electric Corp, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-00-585-2531?

NSN 4810-00-585-2531 has 9 cross-referenced part numbers: 900C277SUB2PC3 (Westinghouse Electric Corp), S703 (Crane Co Div Valve Div), H26218PC53 (Crane Co Div Valve Div), 900J768SUB10PC65 (Westinghouse Electric Corp), 29926-53 (Crane Co Div Valve Div) and 4 more.

What NSN replaces 4810-00-585-2531?

There are 3 known substitutes for 4810-00-585-2531: 5340-00-050-1593, 5975-01-126-0020, 4820-01-304-6590. Verify interchangeability with system specifications before substitution.

What are the specifications of 900C277SUB2PC3?

Key specifications for 900C277SUB2PC3: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 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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