PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFS92Screw,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-00-921-4888 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-921-4888 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-921-4888. Primary manufacturer part number: FFS92.
Features
  • Screw,machine — FSC 5305
  • Thread Length: 0.312 INCHES MINIMUM IN
  • Head Diameter: 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
  • Internal Drive Style: SLOT
  • Screw Material: STEEL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Minimum Tensile Strength: 60000 POUNDS PER SQUARE INCH LBS
  • Thread Class: 2A A
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-921-4888, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-921-4888
Primary Part NumberFFS92
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Thread Length0.312 INCHES MINIMUM IN
Head Diameter0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
Internal Drive StyleSLOT
Screw MaterialSTEEL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Minimum Tensile Strength60000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Head Height0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
Screw Material Document and ClassificationQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE
Fastener Length0.312 INCHES NOMINAL IN
Thread Quantity Per Inch32
Nominal Thread Diameter0.164 INCHES IN
Head StylePAN NO. 2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3030-00-777-954715530 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
4730-00-908-6294 INTERCHANGEABLE
Clamp,hose
5331-01-150-11457406700 INTERCHANGEABLE
O-Ring
Alfa Laval Inc
4730-01-322-5729300 104 H B INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
3040-01-413-600164104 INTERCHANGEABLE
Plate,retaining,shaft
Tld Ace Corp Div Tld Ace
6680-01-479-78206-4104 INTERCHANGEABLE
Indicator Subassembly,liquid Qua
Redington Counters Inc
5120-01-486-222264-104-A INTERCHANGEABLE
Screwdriver,cross Tip
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
FFS92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
64104 Cadillac Gage Textron Inc. (USA)
Related Parts
3030-00-777-9547INTERCHANGEABLE
BELT,V
15530
4730-00-908-6294INTERCHANGEABLE
CLAMP,HOSE
5331-01-150-1145INTERCHANGEABLE
O-RING
7406700
4730-01-322-5729INTERCHANGEABLE
CLAMP,HOSE
300 104 H B
3040-01-413-6001INTERCHANGEABLE
PLATE,RETAINING,SHAFT
64104
6680-01-479-7820INTERCHANGEABLE
INDICATOR SUBASSEMBLY,LIQUID QUA
6-4104
5120-01-486-2222INTERCHANGEABLE
SCREWDRIVER,CROSS TIP
64-104-A

Frequently Asked Questions

What is NSN 5305-00-921-4888?

NSN 5305-00-921-4888 is a Screw,machine, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-921-4888?

NSN 5305-00-921-4888 has 2 cross-referenced part numbers: FFS92 (Federal Specifications Promulgated by General Services Administration Washington DC), 64104 (Cadillac Gage Textron Inc.).

What NSN replaces 5305-00-921-4888?

There are 7 known substitutes for 5305-00-921-4888: 3030-00-777-9547, 4730-00-908-6294, 5331-01-150-1145 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFS92?

Key specifications for FFS92: Thread Length: 0.312 INCHES MINIMUM IN; Head Diameter: 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN; Internal Drive Style: SLOT; Screw Material: STEEL. 13 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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