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Technical Data Sheet
PartsTable / COMPONENT / 129-4
129-4 ✓ 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 129-4 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-174-5322, 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
129-4
NSN: 5325-00-174-5322
FSC: 5325
CAGE: 02769 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
Part Number129-4
NSN5325-00-174-5322
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 129-4 · 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
•
HOLE DIAMETER: 0.188 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
GROMMET CONSTRUCTION TYPE: SOLID
•
GROOVE OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.078 INCHES NOMINAL IN
•
LARGE FLANGE OUTSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
FEATURES PROVIDED: COOLANT RESISTANT AND OIL RESISTANT
•
GROMMET STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.188 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
GROMMET CONSTRUCTION TYPESOLID
GROOVE OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
FLANGE THICKNESS0.078 INCHES NOMINAL IN
LARGE FLANGE OUTSIDE DIAMETER0.438 INCHES NOMINAL IN
FEATURES PROVIDEDCOOLANT RESISTANT AND OIL RESISTANT
GROMMET STYLEROUND
NONMETALLIC HARDNESS RATING50.0 MINIMUM SHORE DUROMETER A AND 60.0 MAXIMUM SHORE DUROMETER A
GROOVE WIDTH0.094 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
C17-5016-036Interchangeable
interchangeable cross-reference
interchangeable
A35BLKNIPLInterchangeable
interchangeable cross-reference
interchangeable
A35Interchangeable
Target,bull's-Eye
interchangeable
293-2D14Interchangeable
interchangeable cross-reference
interchangeable
Z185G093Interchangeable
interchangeable cross-reference
interchangeable
KC5A35Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 129-4?
129-4 is a 129-4.
What parts can replace 129-4?
There are 21 known substitutes for 129-4: C17-5016-036, A35BLKNIPL, A35 and 18 more. Substitute compatibility should be verified for your specific system.
Is 129-4 still available?
129-4 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