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870377 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

870377: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1016 OVERALL, head_style: KNURLED NO. 1, head_height: 0.490 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.648 INCHES NOMINAL IN, thread_length: 0.845 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-001-5017, 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
870377
NSN: 5305-00-001-5017
NIINs: 000015017, 007612135
FSC: 5305 — Screws
CAGE: 90166 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL COMP 1016 OVERALL
head_styleKNURLED NO. 1
head_height0.490 INCHES NOMINAL IN
thread_class2A A
head_diameter0.648 INCHES NOMINAL IN
thread_length0.845 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN
fastener_length0.945 INCHES NOMINAL IN
hardness_rating39.8 ROCKWELL C MINIMUM AND 42.3 ROCKWELL C MAXIMUM OVERALL
locking_featureSTRIP THREADS
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
width_across_flats0.377 INCHES NOMINAL IN
NSN5305-00-001-5017
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 870377 · 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
•
WIDTH ACROSS FLATS: 0.377 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.490 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.945 INCHES NOMINAL IN
•
THREAD LENGTH: 0.845 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN
•
HARDNESS RATING: 39.8 ROCKWELL C MINIMUM AND 42.3 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.437 INCHES IN
•
HEAD STYLE: KNURLED NO. 1
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.377 INCHES NOMINAL IN
HEAD HEIGHT0.490 INCHES NOMINAL IN
FASTENER LENGTH0.945 INCHES NOMINAL IN
THREAD LENGTH0.845 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN
HARDNESS RATING39.8 ROCKWELL C MINIMUM AND 42.3 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.437 INCHES IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATURESTRIP THREADS
SUBSTITUTES & CROSS-REFERENCES 1
870888Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 870377?
870377 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 870377?
There is 1 known substitute for 870377: 870888. Substitute compatibility should be verified for your specific system.
What is the NSN for 870377?
870377 is cataloged in the U.S. Government catalog under NSN 5305-00-001-5017. This indicates validated use in U.S. government and defense supply chains.
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