PartsTable
Technical Data Sheet
Download PDF

2143H165 — STUD,RECESSED AND STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2143H165: STUD,RECESSED AND STEPPED.

The STUD,RECESSED AND STEPPED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8735 OR STEEL COMP 4140, thread_class: 3A NUT THREAD A, thread_length: 0.510 INCHES MINIMUM AND 0.570 INCHES MAXIMUM NUT THREAD IN, overall_length: 2.080 INCHES MINIMUM AND 2.120 INCHES MAXIMUM IN, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, special_features: STUD END THREAD 0.003 IN. OVERSIZE IN.

This part is cataloged in the U.S. Government catalog under NSN 5307-00-149-5255, 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
2143H165
NSN: 5307-00-149-5255
FSC: 5307 — Studs
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 8735 OR STEEL COMP 4140
thread_class3A NUT THREAD A
thread_length0.510 INCHES MINIMUM AND 0.570 INCHES MAXIMUM NUT THREAD IN
overall_length2.080 INCHES MINIMUM AND 2.120 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
special_featuresSTUD END THREAD 0.003 IN. OVERSIZE IN
style_designatorRECESSED AND STEPPED
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.250 INCHES NUT THREAD IN
distance_across_flats0.200 INCHES NOMINAL IN
thread_pitch_diameters+0.2847 TO 0.2857 INCHES STUD THREAD IN
NSN5307-00-149-5255
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2143H165 · 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
•
THREAD LENGTH: 0.430 INCHES MINIMUM AND 0.470 INCHES MAXIMUM STUD THREAD IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: RECESSED AND STEPPED
•
THREAD PITCH DIAMETERS: +0.2847 TO 0.2857 INCHES STUD THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6382 ASSN STD 2ND MATERIAL RESPONSE
•
DIAMETER OF RECESSED PORTION OF SHANK: 0.180 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.430 INCHES MINIMUM AND 0.470 INCHES MAXIMUM STUD THREAD IN
THREAD LENGTH0.510 INCHES MINIMUM AND 0.570 INCHES MAXIMUM NUT THREAD IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED AND STEPPED
THREAD PITCH DIAMETERS+0.2847 TO 0.2857 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6382 ASSN STD 2ND MATERIAL RESPONSE
OVERALL LENGTH2.080 INCHES MINIMUM AND 2.120 INCHES MAXIMUM IN
DIAMETER OF RECESSED PORTION OF SHANK0.180 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
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: Terminal item — stock exhausted; no further procurementNo demilitarization required
Ready to buy 2143H165?
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 2143H165?
2143H165 is a STUD,RECESSED AND STEPPED.
What is the NSN for 2143H165?
2143H165 is cataloged in the U.S. Government catalog under NSN 5307-00-149-5255. 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 — 2143H165

✓ 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.