PartsTable
Technical Data Sheet
122-5277668 ITEM 53 ✓ 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,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE LOCKING INSERT, nut_style: HEXAGON, nut_height: 0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-422-1827, 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
122-5277668 ITEM 53
NSN: 5310-01-422-1827
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYHEXAMETHYLENE ADIPAMIDE LOCKING INSERT
nut_styleHEXAGON
nut_height0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE NUT
width_across_flats1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-01-422-1827
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 122-5277668 ITEM 53 · 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: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE LOCKING INSERT
THREAD QUANTITY PER INCH: 10
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
BEARING SURFACE TYPE: CHAMFERED
NOMINAL THREAD SIZE: 0.750 INCHES IN
WIDTH ACROSS FLATS: 1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC POLYHEXAMETHYLENE ADIPAMIDE LOCKING INSERT
THREAD QUANTITY PER INCH10
END ITEM IDENTIFICATIONLOGISTICS SUPPORT VESSEL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.750 INCHES IN
WIDTH ACROSS FLATS1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY MATERIAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MS17830-12CInterchangeable
interchangeable cross-reference
interchangeable
803-5001004-X5XX-45Interchangeable
interchangeable cross-reference
interchangeable
803-5001004-XXXX-45Interchangeable
interchangeable cross-reference
interchangeable
211026358Interchangeable
interchangeable cross-reference
interchangeable
3/4-10UNC-3BInterchangeable
interchangeable cross-reference
interchangeable
NASM17830-12CInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 122-5277668 ITEM 53?
122-5277668 ITEM 53 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 122-5277668 ITEM 53?
There are 6 known substitutes for 122-5277668 ITEM 53: MS17830-12C, 803-5001004-X5XX-45, 803-5001004-XXXX-45 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 122-5277668 ITEM 53?
122-5277668 ITEM 53 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-422-1827. This indicates validated use in U.S. government and defense supply chains.
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