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W138520 — STUD,SUPPORT

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

W138520: STUD,SUPPORT.

The STUD,SUPPORT is a the manufacturer industrial component. Key specifications include end_item_identification: SKID ASSEMBLY, general_characteristics_item_description: 3.750 IN. LG; 0.50 NPT IN, part_name_assigned_by_controlling_agency: NAVY SPECIAL PROJECT.

This part is cataloged in the U.S. Government catalog under NSN 5307-01-167-7643, 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
W138520
NSN: 5307-01-167-7643
FSC: 5307 — Studs
CAGE: 6R484 — INGERSOLL-RAND COMPANY DBA ROTARY COMPRESSOR DIVISION (USA)
SPECIFICATIONS
end_item_identificationSKID ASSEMBLY
general_characteristics_item_description3.750 IN. LG; 0.50 NPT IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5307-01-167-7643
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: W138520 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 3.750 IN. LG; 0.50 NPT IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION3.750 IN. LG; 0.50 NPT IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
END ITEM IDENTIFICATIONSKID ASSEMBLY
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is W138520?
W138520 is a STUD,SUPPORT.
What is the NSN for W138520?
W138520 is cataloged in the U.S. Government catalog under NSN 5307-01-167-7643. 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.