PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

634BRZRetainer,packing

Carver Pump Company · NSN 5330-00-339-2437 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-339-2437 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-339-2437. Primary manufacturer part number: 634BRZ.
Features
  • Retainer,packing — FSC 5330
  • Cross-Sectional Height: 0.375 INCHES NOMINAL IN
  • Material: RUBBER CHLOROPRENE CLASS CR OVERALL
  • Cross-Sectional Shape Style: SQUARE/RECTANGULAR
  • Center Hole Diameter: 2.125 INCHES NOMINAL IN
  • Peripheral Diameter: 2.250 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Carver Pump Company
Applications
  • Applications requiring Rubber Chloroprene Class Cr Overall construction
General Description

The Retainer,packing, cataloged under National Stock Number 5330-00-339-2437, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Carver Pump Company. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-339-2437
Primary Part Number634BRZ
Item NameRetainer,packing
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCarver Pump Company
StatusACTIVE
Cross-Sectional Height0.375 INCHES NOMINAL IN
MaterialRUBBER CHLOROPRENE CLASS CR OVERALL
Cross-Sectional Shape StyleSQUARE/RECTANGULAR
Center Hole Diameter2.125 INCHES NOMINAL IN
Peripheral Diameter2.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-070-4530634-15639 INTERCHANGEABLE
Ammeter
Phaostron Instrument and Electronic Company
3110-00-070-5462 INTERCHANGEABLE
Retainer,ballbearin
5930-00-132-8275634 INTERCHANGEABLE
Switch,push
Edwards Signaling and Security Systems a Part of Ge Security
4730-00-222-1798AS5183D1212 INTERCHANGEABLE
Adapter,straight,pipe to Hose
Sae International Dba Sae International
8345-00-263-2523 INTERCHANGEABLE
Flag,national
8345-00-264-2633 INTERCHANGEABLE
Flag,national
3040-00-358-1563H114-10 INTERCHANGEABLE
Plate,retaining,shaft
Dresser Industries Inc Leroi Div
5940-00-459-8727371-205-010 INTERCHANGEABLE
Terminal,lug
L3harris Interstate Electronics Corporation
5945-00-631-74486-34 INTERCHANGEABLE
Contact Set,relay
Eaton Corporation
6510-00-782-2698PRM21408CZ INTERCHANGEABLE
Sponge,surgical
Medline Industries, Lp
Cross-Reference Index
Part NumberManufacturer
6A5PC26 Carver Pump Company (USA)
634 Carver Pump Company (USA)
634BRZ PRIMARY Carver Pump Company (USA)
6A3PC26 Carver Pump Company (USA)
Related Parts
6625-00-070-4530INTERCHANGEABLE
AMMETER
634-15639
3110-00-070-5462INTERCHANGEABLE
RETAINER,BALLBEARIN
5930-00-132-8275INTERCHANGEABLE
SWITCH,PUSH
634
4730-00-222-1798INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
AS5183D1212
8345-00-263-2523INTERCHANGEABLE
FLAG,NATIONAL
8345-00-264-2633INTERCHANGEABLE
FLAG,NATIONAL
3040-00-358-1563INTERCHANGEABLE
PLATE,RETAINING,SHAFT
H114-10
5940-00-459-8727INTERCHANGEABLE
TERMINAL,LUG
371-205-010
5945-00-631-7448INTERCHANGEABLE
CONTACT SET,RELAY
6-34
6510-00-782-2698INTERCHANGEABLE
SPONGE,SURGICAL
PRM21408CZ
5305-00-789-0694INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
12051
6240-00-881-9624INTERCHANGEABLE
LAMP,INCANDESCENT
628

Frequently Asked Questions

What is NSN 5330-00-339-2437?

NSN 5330-00-339-2437 is a Retainer,packing, manufactured by Carver Pump Company, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-339-2437?

NSN 5330-00-339-2437 has 4 cross-referenced part numbers: 6A5PC26 (Carver Pump Company), 634 (Carver Pump Company), 634BRZ (Carver Pump Company), 6A3PC26 (Carver Pump Company).

What NSN replaces 5330-00-339-2437?

There are 12 known substitutes for 5330-00-339-2437: 6625-00-070-4530, 3110-00-070-5462, 5930-00-132-8275 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 634BRZ?

Key specifications for 634BRZ: Cross-Sectional Height: 0.375 INCHES NOMINAL IN; Material: RUBBER CHLOROPRENE CLASS CR OVERALL; Cross-Sectional Shape Style: SQUARE/RECTANGULAR; Center Hole Diameter: 2.125 INCHES NOMINAL IN. 5 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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