PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C-4261 PC.12Packing,preformed

Admiral Valve Llc Dba Cpv Manufacturing · NSN 5330-01-165-6576 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-165-6576 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-165-6576. Primary manufacturer part number: C-4261 PC.12.
Features
  • Packing,preformed — FSC 5330
  • Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
  • Criticality Code Justification: ZZZY
  • Elongation Percentage: 160 MAXIMUM
  • Peripheral Diameter: 1.887 INCHES NOMINAL IN
Applications
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Overall construction
General Description

The Packing,preformed, cataloged under National Stock Number 5330-01-165-6576, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Admiral Valve Llc Dba Cpv Manufacturing. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-165-6576
Primary Part NumberC-4261 PC.12
Item NamePacking,preformed
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerAdmiral Valve Llc Dba Cpv Manufacturing
StatusACTIVE
Temp Rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
Criticality Code JustificationZZZY
Elongation Percentage160 MAXIMUM
Peripheral Diameter1.887 INCHES NOMINAL IN
Center Hole Diameter1.599 INCHES MINIMUM AND 1.619 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5331-00-171-664962309-14 INTERCHANGEABLE
O-Ring
Arvinmeritor Inc
5331-00-230-4457 INTERCHANGEABLE
O-Ring
5331-00-542-1329133R120 INTERCHANGEABLE
O-Ring
Aerocontrolex Group, Inc. Dba Aero Fluid Products
5331-00-913-4697 INTERCHANGEABLE
O-Ring
5330-01-033-5157MS28775-223 INTERCHANGEABLE
Packing,preformed
Agm Container Controls Inc Dba Agm Container Controls Inc
5330-01-227-6413B-7593ITEM7 INTERCHANGEABLE
Packing,preformed
Admiral Valve Llc Dba Cpv Manufacturing
5331-01-249-7877 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
C-4261 PC.12 Admiral Valve Llc Dba Cpv Manufacturing (USA)
MIL-P-25732 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
C-4613PC13 Hydrasearch Company, Llc (USA)
77741-17X2PC12 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
845-2181262 PC 13 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
845-2181262 PC 13 Naval Ship Systems Command (USA)
C-4613/003223 Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging (USA)
PL-706 PC.12 Admiral Valve Llc Dba Cpv Manufacturing (USA)
C-4613/003223 Hydrasearch Company, Llc (USA)
MS28775-223 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
C-4613PC13 Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging (USA)
200-2144108 PIECE 12 Naval Ship Systems Command (USA)
Related Parts
5331-00-171-6649INTERCHANGEABLE
O-RING
62309-14
5331-00-230-4457INTERCHANGEABLE
O-RING
5331-00-542-1329INTERCHANGEABLE
O-RING
133R120
5331-00-913-4697INTERCHANGEABLE
O-RING
5330-01-033-5157INTERCHANGEABLE
PACKING,PREFORMED
MS28775-223
5330-01-227-6413INTERCHANGEABLE
PACKING,PREFORMED
B-7593ITEM7
5331-01-249-7877INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5330-01-165-6576?

NSN 5330-01-165-6576 is a Packing,preformed, manufactured by Admiral Valve Llc Dba Cpv Manufacturing, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-165-6576?

NSN 5330-01-165-6576 has 12 cross-referenced part numbers: C-4261 PC.12 (Admiral Valve Llc Dba Cpv Manufacturing), MIL-P-25732 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), C-4613PC13 (Hydrasearch Company, Llc), 77741-17X2PC12 (Electric Boat Corporation Div General Dynamics Electric Boat), 845-2181262 PC 13 (Electric Boat Corporation Div General Dynamics Electric Boat) and 7 more.

What NSN replaces 5330-01-165-6576?

There are 7 known substitutes for 5330-01-165-6576: 5331-00-171-6649, 5331-00-230-4457, 5331-00-542-1329 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C-4261 PC.12?

Key specifications for C-4261 PC.12: Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL. 8 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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