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17945C — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

17945C: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, head_height: 0.156 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.292 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN, thread_length: 0.500 INCHES MAXIMUM IN, screw_material: STEEL COMP 1020. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-732-6339, 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
17945C
NSN: 5305-00-732-6339
FSC: 5305 — Screws
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
head_styleFLAT CHAMFER
head_height0.156 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.292 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
thread_length0.500 INCHES MAXIMUM IN
screw_materialSTEEL COMP 1020
fastener_length0.625 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNF
NSN5305-00-732-6339
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 17945C · 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
•
HEAD HEIGHT: 0.156 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.500 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 1020
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.156 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
FASTENER LENGTH0.625 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH0.500 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 1020
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES 4
42G1010Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
85299Reference document
Same NSN cross-reference
Reference document — Secondary reference
R20395Reference document
Same NSN cross-reference
Reference document — Secondary reference
341532Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 17945C?
17945C is a SCREW,MACHINE.
What parts can replace 17945C?
There are 4 known substitutes for 17945C: 42G1010, 85299, R20395 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 17945C?
17945C is cataloged in the U.S. Government catalog under NSN 5305-00-732-6339. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.