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Technical Data Sheet
PartsTable / COMPONENT / 473B1
473B1 ✓ 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 TELETYPEWRITER SUBASSEMBLY is a the manufacturer industrial component. Key specifications include body_width: 1.812 INCHES MAXIMUM IN, head_style: FILLISTER, body_height: 2.015 INCHES MAXIMUM IN, body_length: 1.938 INCHES MAXIMUM IN, head_height: 0.118 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, thread_class: 2A 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 5305-00-753-9125, 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
473B1
NSN: 5305-00-753-9125
FSC: 5305
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
body_width1.812 INCHES MAXIMUM IN
head_styleFILLISTER
body_height2.015 INCHES MAXIMUM IN
body_length1.938 INCHES MAXIMUM IN
head_height0.118 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
thread_length1.250 INCHES MINIMUM IN
inclosure_typeHERMETICALLY SEALED
screw_materialSTEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1008
fastener_length1.781 INCHES MINIMUM AND 1.812 INCHES MAXIMUM IN
NSN5305-00-753-9125
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 473B1 · 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
•
FASTENER LENGTH: 1.781 INCHES MINIMUM AND 1.812 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD LENGTH: 1.250 INCHES MINIMUM IN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 32
•
SCREW MATERIAL: STEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1008
•
HEAD HEIGHT: 0.118 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH1.781 INCHES MINIMUM AND 1.812 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNF
THREAD LENGTH1.250 INCHES MINIMUM IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH32
SCREW MATERIALSTEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1008
HEAD HEIGHT0.118 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD DIAMETER0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
11563Interchangeable
interchangeable cross-reference
interchangeable
41991Interchangeable
interchangeable cross-reference
interchangeable
473B1Interchangeable
interchangeable cross-reference
interchangeable
914020Interchangeable
interchangeable cross-reference
interchangeable
KC7902Interchangeable
Same NIIN cross-reference
interchangeable
1567648Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 473B1?
473B1 is a TELETYPEWRITER SUBASSEMBLY.
What parts can replace 473B1?
There are 6 known substitutes for 473B1: 11563, 41991, 473B1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 473B1?
473B1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-753-9125. 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