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26S138-4-1AB — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

26S138-4-1AB: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.840 INCHES NOMINAL IN, material: STEEL OVERALL, surface_treatment: PAINT OVERALL, turnlock_stud_shank_style: STUD SHANK. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-338-1072, 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
26S138-4-1AB
NSN: 5325-01-338-1072
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
diameter0.840 INCHES NOMINAL IN
materialSTEEL OVERALL
surface_treatmentPAINT OVERALL
turnlock_stud_shank_styleSTUD SHANK
NSN5325-01-338-1072
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 26S138-4-1AB · 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
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
DIAMETER: 0.840 INCHES NOMINAL IN
•
SURFACE TREATMENT: PAINT OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
TURNLOCK STUD SHANK STYLESTUD SHANK
DIAMETER0.840 INCHES NOMINAL IN
SURFACE TREATMENTPAINT OVERALL
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
1390-0757Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 26S138-4-1AB?
26S138-4-1AB is a STUD,TURNLOCK FASTENER.
What parts can replace 26S138-4-1AB?
There is 1 known substitute for 26S138-4-1AB: 1390-0757. Substitute compatibility should be verified for your specific system.
What is the NSN for 26S138-4-1AB?
26S138-4-1AB is cataloged in the U.S. Government catalog under NSN 5325-01-338-1072. 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.