PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

653BScrew,cap,hexagon Head

Carver Pump Company · NSN 5305-00-292-4986 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-292-4986 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-292-4986. Primary manufacturer part number: 653B.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Thread Class: 3A A
  • Nominal Thread Diameter: 0.438 INCHES IN
  • Material: STEEL OVERALL
  • Thread Series Designator: UNF
  • Head Height: 0.319 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
  • Fastener Length: 2.500 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-292-4986, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Carver Pump Company. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-292-4986
Primary Part Number653B
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCarver Pump Company
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread Class3A A
Nominal Thread Diameter0.438 INCHES IN
MaterialSTEEL OVERALL
Thread Series DesignatorUNF
Head Height0.319 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
Fastener Length2.500 INCHES NOMINAL IN
Thread Length1.125 INCHES MINIMUM IN
Thread Quantity Per Inch20
Head StyleHEXAGON
Width Between Flats0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4310-00-420-6987346B INTERCHANGEABLE
Seat,check Valve
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
2640-00-618-9644 INTERCHANGEABLE
Cap,pneumatic Valve
6625-00-987-672350B INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
3020-01-467-3651J15612018-4 INTERCHANGEABLE
Sprocket Wheel
Jered Llc
7710-01-497-1760 INTERCHANGEABLE
Trombone,bass
Cross-Reference Index
Part NumberManufacturer
653B PRIMARY Carver Pump Company (USA)
50B Climax Metal Products Company Dba Climax Metal Products Company (USA)
653B Jencick Engineering Inc (USA)
Related Parts
4310-00-420-6987INTERCHANGEABLE
SEAT,CHECK VALVE
346B
2640-00-618-9644INTERCHANGEABLE
CAP,PNEUMATIC VALVE
6625-00-987-6723INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
50B
3020-01-467-3651INTERCHANGEABLE
SPROCKET WHEEL
J15612018-4
7710-01-497-1760INTERCHANGEABLE
TROMBONE,BASS

Frequently Asked Questions

What is NSN 5305-00-292-4986?

NSN 5305-00-292-4986 is a Screw,cap,hexagon Head, manufactured by Carver Pump Company, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-292-4986?

NSN 5305-00-292-4986 has 3 cross-referenced part numbers: 653B (Carver Pump Company), 50B (Climax Metal Products Company Dba Climax Metal Products Company), 653B (Jencick Engineering Inc).

What NSN replaces 5305-00-292-4986?

There are 5 known substitutes for 5305-00-292-4986: 4310-00-420-6987, 2640-00-618-9644, 6625-00-987-6723 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 653B?

Key specifications for 653B: Thread Direction: RIGHT-HAND; Thread Class: 3A A; Nominal Thread Diameter: 0.438 INCHES IN; Material: STEEL OVERALL. 11 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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