PartsTable
Technical Data Sheet
L11174-7-4 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), hardness_rating: 24.0 ROCKWELL C MINIMUM, locking_feature: PREVAILING TORQUE ALL METAL DESIGN, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-373-3035, 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
L11174-7-4
NSN: 5310-00-373-3035
FSC: 5310
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
hardness_rating24.0 ROCKWELL C MINIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentSILVER OVERALL
nominal_thread_size0.250 INCHES IN
counterbore_diameter0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM NUT IN
nut_counterbore_depth0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM NUT IN
end_item_identificationW/S: WNGINE, AIRCRAFT, F100 PW220 (F-15C/D/E); AIRCRAFT, F-16; ENGINE, AIRCRAFT, F100-PW-100 (F-15A/B/C/D) A
thread_quantity_per_inch28
NSN5310-00-373-3035
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: L11174-7-4 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL: STEEL OVERALL
SURFACE TREATMENT: SILVER OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT COUNTERBORE DEPTH: 0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM NUT IN
HARDNESS RATING: 24.0 ROCKWELL C MINIMUM
THREAD QUANTITY PER INCH: 28
COUNTERBORE DIAMETER: 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM NUT IN
NOMINAL THREAD SIZE: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
SURFACE TREATMENTSILVER OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT COUNTERBORE DEPTH0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM NUT IN
HARDNESS RATING24.0 ROCKWELL C MINIMUM
THREAD QUANTITY PER INCH28
COUNTERBORE DIAMETER0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM NUT IN
NOMINAL THREAD SIZE0.250 INCHES IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
4021905Interchangeable
interchangeable cross-reference
interchangeable
73974-428Interchangeable
interchangeable cross-reference
interchangeable
4023390Interchangeable
interchangeable cross-reference
interchangeable
806827Interchangeable
interchangeable cross-reference
interchangeable
4021907Interchangeable
interchangeable cross-reference
interchangeable
4023391Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L11174-7-4?
L11174-7-4 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace L11174-7-4?
There are 9 known substitutes for L11174-7-4: 4021905, 73974-428, 4023390 and 6 more. Substitute compatibility should be verified for your specific system.
Is L11174-7-4 still available?
L11174-7-4 is currently cancelled.
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