PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2KK834Back-Up Ring,preformed Packing

Oshkosh Defense Llc · NSN 5330-01-658-9521 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-658-9521 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-658-9521. Primary manufacturer part number: 2KK834.
Features
  • Back-Up Ring,preformed Packing — FSC 5330
  • 2 verified cross-references
  • Primary manufacturer: Oshkosh Defense Llc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-01-658-9521, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Oshkosh Defense Llc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-658-9521
Primary Part Number2KK834
Item NameBack-Up Ring,preformed Packing
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerOshkosh Defense Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6350-00-160-67419626 INTERCHANGEABLE
Buzzer
Faraday Llc
4130-00-196-2957 INTERCHANGEABLE
Compressor Unit,refrigeration
4820-00-287-56275598272 INTERCHANGEABLE
Cock,shutoff,screw Stem
Am General Llc
5970-00-295-76179626 INTERCHANGEABLE
Insulator,spreader
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4820-01-202-9802WAL-C01-09626 INTERCHANGEABLE
Disk,valve
Hunt Valve Company, Inc.
5910-01-246-96499626 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
Knowles Cazenovia Inc.
3120-01-251-87999626 INTERCHANGEABLE
Bushing,sleeve
Hydro Line Mfg Co
5325-01-257-079890-088-1 INTERCHANGEABLE
Latch Guide,snapslide Fastener
Bell Textron Inc
6105-01-324-7891007-211-371-02 INTERCHANGEABLE
Motor,alternating Current
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
Cross-Reference Index
Part NumberManufacturer
2KK834 PRIMARY Oshkosh Defense Llc (USA)
9626 PRIMARY DP Mfg Inc (USA)
Related Parts
6350-00-160-6741INTERCHANGEABLE
BUZZER
9626
4130-00-196-2957INTERCHANGEABLE
COMPRESSOR UNIT,REFRIGERATION
4820-00-287-5627INTERCHANGEABLE
COCK,SHUTOFF,SCREW STEM
5598272
5970-00-295-7617INTERCHANGEABLE
INSULATOR,SPREADER
9626
4820-01-202-9802INTERCHANGEABLE
DISK,VALVE
WAL-C01-09626
5910-01-246-9649INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
9626
3120-01-251-8799INTERCHANGEABLE
BUSHING,SLEEVE
9626
5325-01-257-0798INTERCHANGEABLE
LATCH GUIDE,SNAPSLIDE FASTENER
90-088-1
6105-01-324-7891INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
007-211-371-02

Frequently Asked Questions

What is NSN 5330-01-658-9521?

NSN 5330-01-658-9521 is a Back-Up Ring,preformed Packing, manufactured by Oshkosh Defense Llc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-658-9521?

NSN 5330-01-658-9521 has 2 cross-referenced part numbers: 2KK834 (Oshkosh Defense Llc), 9626 (DP Mfg Inc).

What NSN replaces 5330-01-658-9521?

There are 9 known substitutes for 5330-01-658-9521: 6350-00-160-6741, 4130-00-196-2957, 4820-00-287-5627 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2KK834?

Key specifications for 2KK834: Part Name Assigned by Controlling Agency: RING, BACKUP; End Item Identification: 2320-01-354-4528. 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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