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Technical Data Sheet
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13989L — Technical Data Sheet

✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The STUD,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, thread_length: 1.218 INCHES MAXIMUM NUT THREAD IN, overall_length: 3.710 INCHES MINIMUM AND 3.830 INCHES MAXIMUM IN, hardness_rating: 18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM, shoulder_length: 0.190 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN, special_features: 0.125 IN. RADIUS BETWEEN WRENCH FLAT SHOULDER AND NUT END IN.

This part is cataloged in the Federal Logistics Information System under NSN 5307-00-637-1084, 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
13989L
NSN: 5307-00-637-1084
FSC: 5307
CAGE: 47353 — PORTEC INC PIONEER DIV (USA)
SPECIFICATIONS
materialSTEEL
thread_length1.218 INCHES MAXIMUM NUT THREAD IN
overall_length3.710 INCHES MINIMUM AND 3.830 INCHES MAXIMUM IN
hardness_rating18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM
shoulder_length0.190 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
special_features0.125 IN. RADIUS BETWEEN WRENCH FLAT SHOULDER AND NUT END IN
style_designatorSHOULDERED
thread_directionLEFT-HAND NUT THREAD
shoulder_diameter1.120 INCHES MINIMUM AND 1.210 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES NUT THREAD IN
nut_end_shank_length1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
distance_across_flats0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN
NSN5307-00-637-1084
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 13989L · 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 PITCH DIAMETERS: +0.7044 TO 0.7084 INCHES STUD THREAD IN
•
SHOULDER DIAMETER: 1.120 INCHES MINIMUM AND 1.210 INCHES MAXIMUM IN
•
STUD END SHANK DIAMETER: 0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN
•
NUT END SHANK LENGTH: 1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.190 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.750 INCHES STUD THREAD IN
TECHNICAL CHARACTERISTICS
THREAD PITCH DIAMETERS+0.7044 TO 0.7084 INCHES STUD THREAD IN
SHOULDER DIAMETER1.120 INCHES MINIMUM AND 1.210 INCHES MAXIMUM IN
SPECIAL FEATURES0.125 IN. RADIUS BETWEEN WRENCH FLAT SHOULDER AND NUT END IN
END ITEM IDENTIFICATIONE-3A AWACS; SEMI TRAILER (M870); 12-TON SEMI TRAILER A
STUD END SHANK DIAMETER0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN
NUT END SHANK LENGTH1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
SHOULDER LENGTH0.190 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.750 INCHES STUD THREAD IN
STUD END SHANK LENGTH0.302 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
T5X265InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
22315AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5X265InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
139891InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
USG-24InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8720238InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 13989L?
13989L is a STUD,SHOULDERED.
What parts can replace 13989L?
There are 31 known substitutes for 13989L: T5X265, 22315A, 5X265 and 28 more. Substitute compatibility should be verified for your specific system.
Is 13989L still available?
13989L is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: September 2026