PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

00185Screw,machine

Defense Logistics Agency Dba Defense Supply Center Philadelphia · NSN 5305-00-485-9256 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-485-9256 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-485-9256. Primary manufacturer part number: 00185.
Features
  • Screw,machine — FSC 5305
  • Head Style: HEXAGON
  • Screw Material: STEEL CORROSION RESISTING
  • Width Between Flats: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
  • Thread Series Designator: UNF
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Fastener Length: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
  • Internal Drive Style: SLOT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-485-9256, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-485-9256
Primary Part Number00185
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerDefense Logistics Agency Dba Defense Supply Center Philadelphia
StatusCANCELLED
Head StyleHEXAGON
Screw MaterialSTEEL CORROSION RESISTING
Width Between Flats0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Nominal Thread Diameter0.250 INCHES IN
Fastener Length0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
Internal Drive StyleSLOT
Head Height0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
Thread Length0.681 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
Thread Class3A A
Thread Quantity Per Inch28
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
1680-00-659-88790018-5 INTERCHANGEABLE
Parts Kit,actuator
Aerocontrolex Group, Inc. Div Talley Actuators
4820-01-196-7537 INTERCHANGEABLE
Valve,flow Control
4330-01-465-2385 INTERCHANGEABLE
Filter Element,fluid
Cross-Reference Index
Part NumberManufacturer
00185 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
10-5783 Unison Industries Llc (USA)
10-5783 Amphenol Corp Div Amphenol Aerospace Operations (USA)
10-5783 Teledyne Industries Inc Teledyne Power Systems Div (USA)
Related Parts
1680-00-659-8879INTERCHANGEABLE
PARTS KIT,ACTUATOR
0018-5
4820-01-196-7537INTERCHANGEABLE
VALVE,FLOW CONTROL
4330-01-465-2385INTERCHANGEABLE
FILTER ELEMENT,FLUID

Frequently Asked Questions

What is NSN 5305-00-485-9256?

NSN 5305-00-485-9256 is a Screw,machine, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-485-9256?

NSN 5305-00-485-9256 has 4 cross-referenced part numbers: 00185 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 10-5783 (Unison Industries Llc), 10-5783 (Amphenol Corp Div Amphenol Aerospace Operations), 10-5783 (Teledyne Industries Inc Teledyne Power Systems Div).

What NSN replaces 5305-00-485-9256?

There are 3 known substitutes for 5305-00-485-9256: 1680-00-659-8879, 4820-01-196-7537, 4330-01-465-2385. Verify interchangeability with system specifications before substitution.

What are the specifications of 00185?

Key specifications for 00185: Head Style: HEXAGON; Screw Material: STEEL CORROSION RESISTING; Width Between Flats: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Thread Series Designator: UNF. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-485-9256 still in active supply?

NSN 5305-00-485-9256 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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