PartsTable
Technical Data Sheet
F940 ✓ 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 CLAMP,LOOP is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, nut_style: HEXAGON, nut_height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, loop_length: 6.000 INCHES NOMINAL IN, thread_class: 3B, overall_width: 0.250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-353-2172, 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
F940
NSN: 5310-00-353-2172
FSC: 5310
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
nut_styleHEXAGON
nut_height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
loop_length6.000 INCHES NOMINAL IN
thread_class3B
overall_width0.250 INCHES NOMINAL IN
thread_seriesUN
hardness_rating45.0 ROCKWELL A MINIMUM AND 55.0 ROCKWELL A MAXIMUM
special_featuresONE 0.300 IN. TO 0.310 IN. HOLE 1.625 IN. FROM CENTER IN
thread_directionRIGHT-HAND
material_thickness0.040 INCHES NOMINAL IN
width_across_flats3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM IN
NSN5310-00-353-2172
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F940 · 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 DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION: RIGHT-HAND
THREAD CLASS: 3B
WIDTH ACROSS FLATS: 3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM IN
NUT STYLE: HEXAGON
NUT HEIGHT: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPECIAL FEATURESONE 0.300 IN. TO 0.310 IN. HOLE 1.625 IN. FROM CENTER IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3B
WIDTH ACROSS FLATS3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM IN
NUT STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
NUT HEIGHT0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
THREAD SERIESUN
THREAD QUANTITY PER INCH16
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
080790Interchangeable
interchangeable cross-reference
interchangeable
W35Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F940?
F940 is a CLAMP,LOOP.
What parts can replace F940?
There are 2 known substitutes for F940: 080790, W35. Substitute compatibility should be verified for your specific system.
What is the NSN for F940?
F940 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-353-2172. This indicates validated use in U.S. government and defense supply chains.
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