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S1608 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S1608: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 2.500 INCHES NOMINAL IN, head_height: 0.243 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.250 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-174-9038, 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
S1608
NSN: 5325-00-174-9038
NIINs: 001749038, 008146565
FSC: 5325 — Fastening Devices
CAGE: 76385 — MINOR RUBBER CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length2.500 INCHES NOMINAL IN
head_height0.243 INCHES NOMINAL IN
thread_class2A A
thread_length1.250 INCHES MINIMUM IN
fastener_length3.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.563 INCHES NOMINAL IN
end_item_identificationLOGISTICS SUPPORT VESSEL
nominal_thread_diameter0.375 INCHES IN
NSN5325-00-174-9038
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S1608 · 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
SUBSTITUTES & CROSS-REFERENCES 7
MS35489-20Reference document
Same NSN cross-reference
Reference document — Secondary reference
37K103890Reference document
Same NSN cross-reference
Reference document — Secondary reference
5325001749038Reference document
Same NSN cross-reference
Reference document — Secondary reference
154-0013-020Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS35489-46Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
944.87.31.020Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S1608?
S1608 is a BOLT,MACHINE.
What parts can replace S1608?
There are 7 known substitutes for S1608: MS35489-20, 37K103890, 5325001749038 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S1608?
S1608 is cataloged in the U.S. Government catalog under NSN 5325-00-174-9038. 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.