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Technical Data Sheet
PartsTable / COMPONENT / 268-1556
268-1556 ✓ 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 POST,SNAPSLIDE FASTENER is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, hole_depth: 0.062 INCHES NOMINAL IN, post_shank_length: 0.094 INCHES NOMINAL IN, surface_treatment: NICKEL OVERALL, post_shoulder_length: 0.080 INCHES NOMINAL IN, snapslide_post_style: POST. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-281-6586, 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
268-1556
NSN: 5325-00-281-6586
FSC: 5325
CAGE: 11530 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN INFORMATION SYSTEMS & GLOBAL SOLUTIONS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_depth0.062 INCHES NOMINAL IN
post_shank_length0.094 INCHES NOMINAL IN
surface_treatmentNICKEL OVERALL
post_shoulder_length0.080 INCHES NOMINAL IN
snapslide_post_stylePOST
head_outside_diameter0.437 INCHES NOMINAL IN
mounting_hole_diameter0.082 INCHES NOMINAL IN
shank_outside_diameter0.125 INCHES NOMINAL IN
shoulder_outside_diameter0.185 INCHES NOMINAL IN
NSN5325-00-281-6586
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 268-1556 · 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
•
MOUNTING HOLE DIAMETER: 0.082 INCHES NOMINAL IN
•
SHOULDER OUTSIDE DIAMETER: 0.185 INCHES NOMINAL IN
•
POST SHANK LENGTH: 0.094 INCHES NOMINAL IN
•
SNAPSLIDE POST STYLE: POST
•
POST SHOULDER LENGTH: 0.080 INCHES NOMINAL IN
•
SHANK OUTSIDE DIAMETER: 0.125 INCHES NOMINAL IN
•
HEAD OUTSIDE DIAMETER: 0.437 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING HOLE DIAMETER0.082 INCHES NOMINAL IN
SHOULDER OUTSIDE DIAMETER0.185 INCHES NOMINAL IN
POST SHANK LENGTH0.094 INCHES NOMINAL IN
SNAPSLIDE POST STYLEPOST
POST SHOULDER LENGTH0.080 INCHES NOMINAL IN
SHANK OUTSIDE DIAMETER0.125 INCHES NOMINAL IN
HEAD OUTSIDE DIAMETER0.437 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
SURFACE TREATMENTNICKEL OVERALL
HOLE DEPTH0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
5172Interchangeable
interchangeable cross-reference
interchangeable
170416Interchangeable
interchangeable cross-reference
interchangeable
677311-3Interchangeable
interchangeable cross-reference
interchangeable
G534AInterchangeable
interchangeable cross-reference
interchangeable
63452HInterchangeable
interchangeable cross-reference
interchangeable
F-20399-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 268-1556?
268-1556 is a POST,SNAPSLIDE FASTENER.
What parts can replace 268-1556?
There are 12 known substitutes for 268-1556: 5172, 170416, 677311-3 and 9 more. Substitute compatibility should be verified for your specific system.
Is 268-1556 still available?
268-1556 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026