PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 587-277
587-277 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, body_width: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, body_height: 0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN, body_length: 0.660 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN, head_height: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, head_length: 0.640 INCHES MINIMUM AND 0.660 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 5306-00-903-2258, 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
587-277
NSN: 5306-00-903-2258
FSC: 5306
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
body_width0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
body_height0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
body_length0.660 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
head_height0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
head_length0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
thread_class3A A
chamfer_angle43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
thread_length0.305 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.040 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
NSN5306-00-903-2258
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 587-277 · 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
•
CHAMFER ANGLE: 43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
•
SHOULDER LENGTH: 0.725 INCHES MINIMUM AND 0.735 INCHES MAXIMUM FIRST SHOULDER IN
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5663 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD CLASS: 3A A
•
HEAD LENGTH: 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
MATERIAL: NICKEL ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CHAMFER ANGLE43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
SHOULDER LENGTH0.725 INCHES MINIMUM AND 0.735 INCHES MAXIMUM FIRST SHOULDER IN
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5663 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD CLASS3A A
HEAD LENGTH0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
MATERIALNICKEL ALLOY OVERALL
SHOULDER SHAPEROUND FIRST SHOULDER
SHOULDER DIAMETER0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST SHOULDER IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
725000-134Interchangeable
interchangeable cross-reference
interchangeable
735716-1Interchangeable
interchangeable cross-reference
interchangeable
587277Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 587-277?
587-277 is a MICROCIRCUIT,DIGITAL.
What parts can replace 587-277?
There are 3 known substitutes for 587-277: 725000-134, 735716-1, 587277. Substitute compatibility should be verified for your specific system.
What is the NSN for 587-277?
587-277 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-903-2258. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026