PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21251Screw,cap,hexagon Head

Industrial Technologies and Services Llc · NSN 5305-01-298-0629 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-298-0629 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-298-0629. Primary manufacturer part number: 21251.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • 2 verified cross-references
  • Primary manufacturer: Industrial Technologies and Services Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-298-0629, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Industrial Technologies and Services 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
NSN5305-01-298-0629
Primary Part Number21251
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerIndustrial Technologies and Services Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5110-00-255-6557 INTERCHANGEABLE
Reamer,hand
5985-00-399-7135ESD3362-4 INTERCHANGEABLE
Mast Section
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5310-00-685-161821251 INTERCHANGEABLE
Washer,finishing
Mason Electric Co. Dba Mason Controls
1660-00-881-030621251 INTERCHANGEABLE
Converter,liquid Oxygen
Ingersoll-Rand Company Dba Ingersoll-Rand
4520-01-020-3263 INTERCHANGEABLE
Heating Element,electrical,nonim
5305-01-158-676521251 INTERCHANGEABLE
Setscrew
Erie Strayer Co
2910-01-168-8088J8123050 INTERCHANGEABLE
Float,carburetor
Chrysler Corp Engine and Components Sales Diversified Products Div
4730-01-231-862121251 INTERCHANGEABLE
Adapter,straight,tube to Boss
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6105-01-300-647221251-2 INTERCHANGEABLE
Motor,alternating Current
Silver King Refrigeration Inc.
Cross-Reference Index
Part NumberManufacturer
21251 Zf Industrieantriebe Witten Gmbh (DEU)
21251 PRIMARY Industrial Technologies and Services Llc (USA)
Related Parts
5110-00-255-6557INTERCHANGEABLE
REAMER,HAND
5985-00-399-7135INTERCHANGEABLE
MAST SECTION
ESD3362-4
5310-00-685-1618INTERCHANGEABLE
WASHER,FINISHING
21251
1660-00-881-0306INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
21251
4520-01-020-3263INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5305-01-158-6765INTERCHANGEABLE
SETSCREW
21251
2910-01-168-8088INTERCHANGEABLE
FLOAT,CARBURETOR
J8123050
4730-01-231-8621INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
21251
6105-01-300-6472INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
21251-2

Frequently Asked Questions

What is NSN 5305-01-298-0629?

NSN 5305-01-298-0629 is a Screw,cap,hexagon Head, manufactured by Industrial Technologies and Services Llc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-298-0629?

NSN 5305-01-298-0629 has 2 cross-referenced part numbers: 21251 (Zf Industrieantriebe Witten Gmbh), 21251 (Industrial Technologies and Services Llc).

What NSN replaces 5305-01-298-0629?

There are 9 known substitutes for 5305-01-298-0629: 5110-00-255-6557, 5985-00-399-7135, 5310-00-685-1618 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21251?

Key specifications for 21251: End Item Identification: LOGISTICS SUPPORT VESSEL. 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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