PartsTable
Technical Data Sheet
Download PDF

26S40-20 — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

26S40-20: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN, material: STEEL OVERALL, drive_type: KNURLED, stud_head_height: 0.150 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, surface_treatment: NICKEL OVERALL, stud_assembly_style: STUD ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-165-7692, 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
26S40-20
NSN: 5325-01-165-7692
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
diameter0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
materialSTEEL OVERALL
drive_typeKNURLED
stud_head_height0.150 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
surface_treatmentNICKEL OVERALL
stud_assembly_styleSTUD ASSEMBLY
securing_device_typeWASHER
eyelet_outside_diameter0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
turnlock_stud_head_styleSTUD HEAD
material_accommodated_thickness0.570 INCHES MINIMUM AND 0.599 INCHES MAXIMUM IN
NSN5325-01-165-7692
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 26S40-20 · 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
•
EYELET OUTSIDE DIAMETER: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
DRIVE TYPE: KNURLED
•
MATERIAL ACCOMMODATED THICKNESS: 0.570 INCHES MINIMUM AND 0.599 INCHES MAXIMUM IN
•
DIAMETER: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
•
STUD HEAD HEIGHT: 0.150 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
SECURING DEVICE TYPE: WASHER
•
TURNLOCK STUD HEAD STYLE: STUD HEAD
•
SURFACE TREATMENT: NICKEL OVERALL
TECHNICAL CHARACTERISTICS
EYELET OUTSIDE DIAMETER0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
DRIVE TYPEKNURLED
MATERIAL ACCOMMODATED THICKNESS0.570 INCHES MINIMUM AND 0.599 INCHES MAXIMUM IN
DIAMETER0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
STUD HEAD HEIGHT0.150 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
SECURING DEVICE TYPEWASHER
TURNLOCK STUD HEAD STYLESTUD HEAD
SURFACE TREATMENTNICKEL OVERALL
MATERIALSTEEL OVERALL
STUD ASSEMBLY STYLESTUD ASSEMBLY
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 26S40-20?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 26S40-20?
26S40-20 is a STUD ASSEMBLY,TURNLOCK FASTENER.
What is the NSN for 26S40-20?
26S40-20 is cataloged in the U.S. Government catalog under NSN 5325-01-165-7692. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 26S40-20

✓ 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.