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T40L57 — INSERT,SCREW THREAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

T40L57: INSERT,SCREW THREAD.

The INSERT,SCREW THREAD is a the manufacturer industrial component. Key specifications include length: 0.190 INCHES NOMINAL IN, insert_size: 0.164-32 UNC 2A MODIFIED MINOR DIA 0.138 IN. A, thread_class: 3B, style_designator: PLAIN, features_provided: INDIVIDUALLY KEYED, surface_treatment: PASSIVATE OVERALL.

This part is cataloged in the U.S. Government catalog under NSN 5325-00-995-6874, 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
T40L57
NSN: 5325-00-995-6874
FSC: 5325 — Fastening Devices
CAGE: 16941 — LONG-LOK LLC (USA)
SPECIFICATIONS
length0.190 INCHES NOMINAL IN
insert_size0.164-32 UNC 2A MODIFIED MINOR DIA 0.138 IN. A
thread_class3B
style_designatorPLAIN
features_providedINDIVIDUALLY KEYED
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.112 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5325-00-995-6874
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: T40L57 · 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
•
LENGTH: 0.190 INCHES NOMINAL IN
•
INSERT SIZE: 0.164-32 UNC 2A MODIFIED MINOR DIA 0.138 IN. A
•
STYLE DESIGNATOR: PLAIN
•
FEATURES PROVIDED: INDIVIDUALLY KEYED
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD CLASS: 3B
•
THREAD QUANTITY PER INCH: 40
TECHNICAL CHARACTERISTICS
LENGTH0.190 INCHES NOMINAL IN
INSERT SIZE0.164-32 UNC 2A MODIFIED MINOR DIA 0.138 IN. A
STYLE DESIGNATORPLAIN
FEATURES PROVIDEDINDIVIDUALLY KEYED
NOMINAL THREAD SIZE0.112 INCHES IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3B
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
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
610046P32Reference document
Same NSN cross-reference
Reference document — Vendor item drawing 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 T40L57?
T40L57 is a INSERT,SCREW THREAD.
What parts can replace T40L57?
There is 1 known substitute for T40L57: 610046P32. Substitute compatibility should be verified for your specific system.
What is the NSN for T40L57?
T40L57 is cataloged in the U.S. Government catalog under NSN 5325-00-995-6874. 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.