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Technical Data Sheet
PartsTable / COMPONENT / 305-894
305-894 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include body_width: 0.420 INCHES MAXIMUM IN, head_style: HEXAGON, body_height: 0.190 INCHES MAXIMUM IN, body_length: 0.625 INCHES MAXIMUM IN, head_height: 1.969 INCHES NOMINAL IN, thread_class: 3A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-025-7447, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
305-894
NSN: 5305-00-025-7447
FSC: 5305
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
body_width0.420 INCHES MAXIMUM IN
head_styleHEXAGON
body_height0.190 INCHES MAXIMUM IN
body_length0.625 INCHES MAXIMUM IN
head_height1.969 INCHES NOMINAL IN
thread_class3A A
hole_diameter0.062 INCHES NOMINAL IN
hole_quantity3
thread_length0.625 INCHES MAXIMUM IN
screw_materialSTEEL COMP 303
fastener_length1.343 INCHES MINIMUM AND 1.359 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
NSN5305-00-025-7447
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 305-894 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD CLASS: 3A A
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
INTERNAL DRIVE STYLE: SLOT
•
WIDTH BETWEEN FLATS: 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
•
SCREW MATERIAL: STEEL COMP 303
•
SCREW SURFACE TREATMENT: PASSIVATE
•
FASTENER LENGTH: 1.343 INCHES MINIMUM AND 1.359 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A A
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
INTERNAL DRIVE STYLESLOT
WIDTH BETWEEN FLATS0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
SCREW MATERIALSTEEL COMP 303
SCREW SURFACE TREATMENTPASSIVATE
FASTENER LENGTH1.343 INCHES MINIMUM AND 1.359 INCHES MAXIMUM IN
HEAD HOLE CONFIGURATION STYLEHEXAGON FLATS
HOLE DIAMETER0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
3307812Interchangeable
interchangeable cross-reference
interchangeable
305-894Interchangeable
interchangeable cross-reference
interchangeable
MC7812CTInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 305-894?
305-894 is a RELAY,ELECTROMAGNETIC.
What parts can replace 305-894?
There are 3 known substitutes for 305-894: 3307812, 305-894, MC7812CT. Substitute compatibility should be verified for your specific system.
What is the NSN for 305-894?
305-894 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-025-7447. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026