PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R261PC13Seal Assembly,shaft,spring Loade

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-377-6311 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-377-6311 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-377-6311. Primary manufacturer part number: R261PC13.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: CONSIST OF SPRING; BELLOWS; RETAINER; SEAT
  • 31 verified cross-references
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Mechanical energy storage
  • Vibration dampening
General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-00-377-6311, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 31 commercial cross-references from 3 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
NSN4320-00-377-6311
Primary Part NumberR261PC13
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
General Characteristics Item DescriptionCONSIST OF SPRING; BELLOWS; RETAINER; SEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5120-00-187-8679P-92 INTERCHANGEABLE
Pick,digging
Ngk Metals Corporation Dba N G K Berylco
2940-00-217-3588100249 INTERCHANGEABLE
Filter Element,fluid
Cadillac Gage Textron Inc.
6240-00-526-02436S6W120 INTERCHANGEABLE
Lamp,incandescent
General Electric Company
Cross-Reference Index
Part NumberManufacturer
571-6204-1303696REVAPCN26516-9 Naval Ship Systems Command (USA)
R332REVAITEM8 Circor Naval Solutions Llc Dba Warren Pumps (USA)
571-5901-1303697REVAPCN26323-12 Naval Ship Systems Command (USA)
CF-SP1684 John Crane, Inc (USA)
R264ITEM8 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R246APC33 Circor Naval Solutions Llc Dba Warren Pumps (USA)
4700-3196203REVAPC34 Naval Ship Systems Command (USA)
R252REVAPC34 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R261REVAPC13 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R272REVAPCN26323-12 Circor Naval Solutions Llc Dba Warren Pumps (USA)
575-6204-1444242REVASHIPC9 Naval Ship Systems Command (USA)
R330REVASH1PC9 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R260REVAPCN26516-9 Circor Naval Solutions Llc Dba Warren Pumps (USA)
575-4805-1444249REVAITEM8 Naval Ship Systems Command (USA)
R300REVAPC7 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R246REVAPC33 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R280REVAPC34 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R717REVAPCN32251-12 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R263REVAPCN26325-3 Circor Naval Solutions Llc Dba Warren Pumps (USA)
575-5801-1444240REVAPCN26725-3 Naval Ship Systems Command (USA)
Related Parts
5120-00-187-8679INTERCHANGEABLE
PICK,DIGGING
P-92
2940-00-217-3588INTERCHANGEABLE
FILTER ELEMENT,FLUID
100249
6240-00-526-0243INTERCHANGEABLE
LAMP,INCANDESCENT
6S6W120

Frequently Asked Questions

What is NSN 4320-00-377-6311?

NSN 4320-00-377-6311 is a Seal Assembly,shaft,spring Loade, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-377-6311?

NSN 4320-00-377-6311 has 31 cross-referenced part numbers: 571-6204-1303696REVAPCN26516-9 (Naval Ship Systems Command), R332REVAITEM8 (Circor Naval Solutions Llc Dba Warren Pumps), 571-5901-1303697REVAPCN26323-12 (Naval Ship Systems Command), CF-SP1684 (John Crane, Inc), R264ITEM8 (Circor Naval Solutions Llc Dba Warren Pumps) and 26 more.

What NSN replaces 4320-00-377-6311?

There are 3 known substitutes for 4320-00-377-6311: 5120-00-187-8679, 2940-00-217-3588, 6240-00-526-0243. Verify interchangeability with system specifications before substitution.

What are the specifications of R261PC13?

Key specifications for R261PC13: General Characteristics Item Description: CONSIST OF SPRING; BELLOWS; RETAINER; SEAT. 1 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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