PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21278Bore,rod

Charles Reed Knight Jr Dba Knight's Armament Company · NSN 1005-01-503-0022 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-01-503-0022 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-503-0022. Primary manufacturer part number: 21278.
Features
  • Bore,rod — FSC 1005
  • 1 verified cross-reference
  • Primary manufacturer: Charles Reed Knight Jr Dba Knight's Armament Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bore,rod, cataloged under National Stock Number 1005-01-503-0022, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Charles Reed Knight Jr Dba Knight's Armament Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBore,rod
FSC / FSG1005 — No Item Name Available (FSG 10)
ManufacturersCharles Reed Knight Jr Dba Knight's Armament Company (CAGE 1S002)
Technical Specifications
ParameterValue
NSN1005-01-503-0022
Primary Part Number21278
Item NameBore,rod
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerCharles Reed Knight Jr Dba Knight's Armament Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
1660-00-078-822710C-0005-11 INTERCHANGEABLE
Converter,liquid Oxygen
Essex Industries, Inc. Dba Essex Industries
3110-00-100-61820283 INTERCHANGEABLE
Ball,bearing
Harley Davidson Motor Co Inc
5340-00-163-5527E5-45-656 INTERCHANGEABLE
Cup,compression
Edgewood Chemical Biological Center Ecbc
5945-00-233-1389SCB42402 INTERCHANGEABLE
Relay,electromagnetic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6685-00-239-4007 INTERCHANGEABLE
Thermometer,self-Indicating
1075-00-293-6577 INTERCHANGEABLE
Stop,wedge,mine Sweeping
4820-00-936-4274 INTERCHANGEABLE
Valve,safety Relief
5330-01-096-349921278 INTERCHANGEABLE
Seal,plain Encased
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5331-01-178-1752 INTERCHANGEABLE
O-Ring
4730-01-301-368721278 INTERCHANGEABLE
Repair Kit,pipe,emergency Damage
Indumar Products Inc
Cross-Reference Index
Part NumberManufacturer
21278 PRIMARY Charles Reed Knight Jr Dba Knight's Armament Company (USA)
Related Parts
1660-00-078-8227INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
10C-0005-11
3110-00-100-6182INTERCHANGEABLE
BALL,BEARING
0283
5340-00-163-5527INTERCHANGEABLE
CUP,COMPRESSION
E5-45-656
5945-00-233-1389INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SCB42402
6685-00-239-4007INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
1075-00-293-6577INTERCHANGEABLE
STOP,WEDGE,MINE SWEEPING
4820-00-936-4274INTERCHANGEABLE
VALVE,SAFETY RELIEF
5330-01-096-3499INTERCHANGEABLE
SEAL,PLAIN ENCASED
21278
5331-01-178-1752INTERCHANGEABLE
O-RING
4730-01-301-3687INTERCHANGEABLE
REPAIR KIT,PIPE,EMERGENCY DAMAGE
21278
5306-01-725-1289INTERCHANGEABLE
BOLT,MACHINE
21278

Frequently Asked Questions

What is NSN 1005-01-503-0022?

NSN 1005-01-503-0022 is a Bore,rod, manufactured by Charles Reed Knight Jr Dba Knight's Armament Company, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-01-503-0022?

NSN 1005-01-503-0022 has 1 cross-referenced part number: 21278 (Charles Reed Knight Jr Dba Knight's Armament Company).

What NSN replaces 1005-01-503-0022?

There are 11 known substitutes for 1005-01-503-0022: 1660-00-078-8227, 3110-00-100-6182, 5340-00-163-5527 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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