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Technical Data Sheet
PartsTable / COMPONENT / 156/77
156/77 ✓ 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 156/77 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-795-9884, 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
156/77
NSN: 5325-00-795-9884
FSC: 5325
CAGE: K7018 — WELLMAN GROUP (GBR)
SPECIFICATIONS
Part Number156/77
NSN5325-00-795-9884
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 156/77 · 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
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM
•
RING STYLE: STRAIGHT GAP
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
USAGE DESIGN: EXTERNAL
•
MAJOR THICKNESS: 0.050 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTANODIZE
MATERIALALUMINUM
RING STYLESTRAIGHT GAP
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
USAGE DESIGNEXTERNAL
MAJOR THICKNESS0.050 INCHES NOMINAL IN
INSIDE DIAMETER0.094 INCHES NOMINAL IN
END STYLE90 DEGREE PARALLEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
L1700-15Interchangeable
interchangeable cross-reference
interchangeable
450143Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
52C220Interchangeable
interchangeable cross-reference
interchangeable
SCC60715Interchangeable
interchangeable cross-reference
interchangeable
15677Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 156/77?
156/77 is a 156/77.
What parts can replace 156/77?
There are 18 known substitutes for 156/77: L1700-15, 450143, 00044 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 156/77?
156/77 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-795-9884. 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