PartsTable
Technical Data Sheet
1406-31 ✓ 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 TERMINAL BOARD is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-014-0631, 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
1406-31
NSN: 5310-00-014-0631
FSC: 5310
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.5510 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch24
nondefinitive_spec/std_dataA TYPE
departure_from_cited_documentAS MODIFIED BY HEIGHT RQMT
NSN5310-00-014-0631
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1406-31 · 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
NUT STYLE: HEXAGON
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH: 24
THREAD SERIES: UNF
NOMINAL THREAD SIZE: 0.375 INCHES IN
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY HEIGHT RQMT
MATERIAL: COPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-611-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH24
THREAD SERIESUNF
NOMINAL THREAD SIZE0.375 INCHES IN
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY HEIGHT RQMT
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-611-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATAA TYPE
NUT HEIGHT0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
12044Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751Interchangeable
interchangeable cross-reference
interchangeable
1330LInterchangeable
interchangeable cross-reference
interchangeable
2107Interchangeable
interchangeable cross-reference
interchangeable
24264Interchangeable
interchangeable cross-reference
interchangeable
24402Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1406-31?
1406-31 is a TERMINAL BOARD.
What parts can replace 1406-31?
There are 11 known substitutes for 1406-31: 12044, GGG-D-751, 1330L and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1406-31?
1406-31 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-014-0631. This indicates validated use in U.S. government and defense supply chains.
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