PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 870377
870377 ✓ 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 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 product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-001-5017, 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
FSC: 5305
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
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 1016 OVERALL
•
WIDTH ACROSS FLATS: 0.377 INCHES NOMINAL IN
•
HARDNESS RATING: 39.8 ROCKWELL C MINIMUM AND 42.3 ROCKWELL C MAXIMUM OVERALL
•
HEAD STYLE: KNURLED NO. 1
•
THREAD QUANTITY PER INCH: 20
•
HEAD DIAMETER: 0.648 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1016 OVERALL
WIDTH ACROSS FLATS0.377 INCHES NOMINAL IN
HARDNESS RATING39.8 ROCKWELL C MINIMUM AND 42.3 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEKNURLED NO. 1
THREAD QUANTITY PER INCH20
HEAD DIAMETER0.648 INCHES NOMINAL IN
SURFACE TREATMENTPHOSPHATE OVERALL
FASTENER LENGTH0.945 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
AN500-8-5Interchangeable
interchangeable cross-reference
interchangeable
31037S7Interchangeable
interchangeable cross-reference
interchangeable
A1647Interchangeable
interchangeable cross-reference
interchangeable
910-040Interchangeable
interchangeable cross-reference
interchangeable
363Interchangeable
interchangeable cross-reference
interchangeable
400613-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 870377?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 870377?
870377 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 870377?
There are 9 known substitutes for 870377: AN500-8-5, 31037S7, A1647 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 870377?
870377 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-001-5017. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 870377

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026