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42 FIND 21 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

42 FIND 21: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, head_style: HEXAGON, head_height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.470 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN, fastener_length: 0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-428-2152, 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
42 FIND 21
NSN: 5306-01-428-2152
FSC: 5306 — Bolts
CAGE: 64046 — CORRY CONTRACT, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
head_styleHEXAGON
head_height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
thread_class2A A
thread_length0.470 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN
fastener_length0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
locking_featurePATCH OR PELLET OR STRIP THREADS
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
NSN5306-01-428-2152
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 42 FIND 21 · 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: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.470 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F593 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
FASTENER LENGTH0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
THREAD LENGTH0.470 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM F593 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
SURFACE TREATMENTPASSIVATE OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
211040592Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-S-1222 TI GR316Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-1222 TI GR316Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-1222JReference document
Same NSN cross-reference
Reference document — Identification reference
DF2685-188-403Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 42 FIND 21?
42 FIND 21 is a BOLT,MACHINE.
What parts can replace 42 FIND 21?
There are 5 known substitutes for 42 FIND 21: 211040592, MIL-S-1222 TI GR316, MIL-DTL-1222 TI GR316 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 42 FIND 21?
42 FIND 21 is cataloged in the U.S. Government catalog under NSN 5306-01-428-2152. This indicates validated use in U.S. government and defense supply chains.
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