PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

91204Screw,machine

Fastenal Company Dba Fastenal Co · NSN 5305-01-556-5539 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-556-5539 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-556-5539. Primary manufacturer part number: 91204.
Features
  • Screw,machine — FSC 5305
  • Specification/standard Data: D8286-DIN 7985 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Head Style: PAN
  • Special Test Features: FINISH = ZN A1J PER ISO 4042 (TRIVALENT, ROHS COMPLIANT)
  • Screw Material: STEEL
  • Nominal Thread Diameter: 4.0 MILLIMETERS MM
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-556-5539, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-556-5539
Primary Part Number91204
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Specification/standard DataD8286-DIN 7985 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Head StylePAN
Special Test FeaturesFINISH = ZN A1J PER ISO 4042 (TRIVALENT, ROHS COMPLIANT)
Screw MaterialSTEEL
Nominal Thread Diameter4.0 MILLIMETERS MM
Internal Drive StyleCROSS RECESS TYPE 1
Thread DirectionRIGHT-HAND
Screw Surface TreatmentZINC
Fastener Length20.00 MILLIMETERS NOMINAL MM
ColorSILVER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-102-4672 INTERCHANGEABLE
Spring,helical,compression
5940-00-113-9828AS25036-148 INTERCHANGEABLE
Terminal,lug
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3020-00-251-0903 INTERCHANGEABLE
Gear,helical
5930-00-259-7154 INTERCHANGEABLE
Switch,rotary
6605-00-413-716991204 INTERCHANGEABLE
Cap
Lockheed Martin Corporation Div Rms - Mitchel Field
5365-01-157-715491204 INTERCHANGEABLE
Spacer,ring
Raytheon Company Dba Raytheon Co
7045-01-196-097676204026 INTERCHANGEABLE
Disk Cartridge,magnetic
Control Data Systems Inc Contracts Dept
5310-01-291-6565J904779 INTERCHANGEABLE
Washer,lock
Cnh Industrial America Llc Dba Cnh America
4920-01-296-156491204 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5305-01-587-329040315R1 INTERCHANGEABLE
Screw,machine
Nd Defense Llc
Cross-Reference Index
Part NumberManufacturer
ESP-CM-3.101-PP Nd Defense Llc (USA)
91204 PRIMARY Fastenal Company Dba Fastenal Co (USA)
ESP-CM-1.101-GS Nd Defense Llc (USA)
30988R1 Nd Defense Llc (USA)
12759-00529 Fastenal Company Dba Fastenal Co (USA)
Related Parts
5360-00-102-4672INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5940-00-113-9828INTERCHANGEABLE
TERMINAL,LUG
AS25036-148
3020-00-251-0903INTERCHANGEABLE
GEAR,HELICAL
5930-00-259-7154INTERCHANGEABLE
SWITCH,ROTARY
6605-00-413-7169INTERCHANGEABLE
CAP
91204
5365-01-157-7154INTERCHANGEABLE
SPACER,RING
91204
7045-01-196-0976INTERCHANGEABLE
DISK CARTRIDGE,MAGNETIC
76204026
5310-01-291-6565INTERCHANGEABLE
WASHER,LOCK
J904779
4920-01-296-1564INTERCHANGEABLE
TEST PROGRAM SET
91204
5305-01-587-3290INTERCHANGEABLE
SCREW,MACHINE
40315R1
5305-01-607-7390INTERCHANGEABLE
SCREW,MACHINE
3876785C1
5305-01-610-5528INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
30479R1

Frequently Asked Questions

What is NSN 5305-01-556-5539?

NSN 5305-01-556-5539 is a Screw,machine, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-556-5539?

NSN 5305-01-556-5539 has 5 cross-referenced part numbers: ESP-CM-3.101-PP (Nd Defense Llc), 91204 (Fastenal Company Dba Fastenal Co), ESP-CM-1.101-GS (Nd Defense Llc), 30988R1 (Nd Defense Llc), 12759-00529 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5305-01-556-5539?

There are 12 known substitutes for 5305-01-556-5539: 5360-00-102-4672, 5940-00-113-9828, 3020-00-251-0903 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 91204?

Key specifications for 91204: Part Name Assigned by Controlling Agency: SCREW, M4 X 20MM CLASS 4.8 P/H MM; End Item Identification: MRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS; MRAP MAXXPRO DASH ISS W/OGPK AND W/CROWS; Specification/standard Data: D8286-DIN 7985 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Head Style: PAN. 12 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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