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PartsTable / COMPONENT / 53-3890
53-3890 ✓ 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 TEE,PIPE is a the manufacturer industrial component. Key specifications include connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: RUN MODIFIED TO ACCOMODATE INDICATOR, nominal_thread_size: 1.000 INCHES ALL ENDS IN, thread_series_designator: NPT ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-276-8637, 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
53-3890
NSN: 5310-00-276-8637
FSC: 5310
CAGE: 75377 — KURZ & ROOT GENERATOR COMPANY, LLC (USA)
SPECIFICATIONS
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresRUN MODIFIED TO ACCOMODATE INDICATOR
nominal_thread_size1.000 INCHES ALL ENDS IN
thread_series_designatorNPT ALL ENDS
NSN5310-00-276-8637
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 53-3890 · 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
•
OUTSIDE DIAMETER: 1.375 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.124 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.344 INCHES NOMINAL IN
•
RECESS DEPTH: 0.062 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RECESSED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER1.375 INCHES NOMINAL IN
MATERIAL THICKNESS0.124 INCHES NOMINAL IN
HOLE DIAMETER0.344 INCHES NOMINAL IN
RECESS DEPTH0.062 INCHES NOMINAL IN
OVERALL HEIGHT0.188 INCHES NOMINAL IN
STYLE DESIGNATORRECESSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
3890Interchangeable
interchangeable cross-reference
interchangeable
B771139-1Interchangeable
interchangeable cross-reference
interchangeable
3890-1BInterchangeable
interchangeable cross-reference
interchangeable
16014TInterchangeable
interchangeable cross-reference
interchangeable
GGG-W-646 TY2CL1STBFMATM151Interchangeable
interchangeable cross-reference
interchangeable
SAR3890Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 53-3890?
53-3890 is a TEE,PIPE.
What parts can replace 53-3890?
There are 13 known substitutes for 53-3890: 3890, B771139-1, 3890-1B and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 53-3890?
53-3890 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-276-8637. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026