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5131-18-2 — PLUG,PIPE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5131-18-2: PLUG,PIPE.

The PLUG,PIPE is a the manufacturer industrial component. Key specifications include diameter: 0.187 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061 OVERALL, overall_length: 1.820 INCHES NOMINAL IN, undercut_width: 0.032 INCHES NOMINAL IN, first_end_style: CHAMFERED, effective_length: 1.180 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-724-2591, 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
5131-18-2
NSN: 5325-00-724-2591
NIINs: 007242591, 008579208, 012266084
FSC: 5325 — Fastening Devices
CAGE: 79136 — TRUARC COMPANY LLC DBA WALDES TRUARC (USA)
SPECIFICATIONS
diameter0.187 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061 OVERALL
overall_length1.820 INCHES NOMINAL IN
undercut_width0.032 INCHES NOMINAL IN
first_end_styleCHAMFERED
effective_length1.180 INCHES NOMINAL IN
style_designatorGROOVE
surface_treatmentANODIZE OVERALL
undercut_diameter0.149 INCHES NOMINAL IN
first_end_locationBOTH ENDS
material_document_and_classificationQQ-A-325,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5325-00-724-2591
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5131-18-2 · 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
•
USAGE DESIGN: EXTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.015 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.145 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: E
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.015 INCHES NOMINAL IN
INSIDE DIAMETER0.145 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEE
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 3
5131-18CReference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS16634-5018Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1001-X18-BCSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5131-18-2?
5131-18-2 is a PLUG,PIPE.
What parts can replace 5131-18-2?
There are 3 known substitutes for 5131-18-2: 5131-18C, MS16634-5018, 1001-X18-BC. Substitute compatibility should be verified for your specific system.
What is the NSN for 5131-18-2?
5131-18-2 is cataloged in the U.S. Government catalog under NSN 5325-00-724-2591. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.