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Technical Data Sheet
PartsTable / COMPONENT / 376997PC2
376997PC2 ✓ 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,PLAIN,WING is a the manufacturer industrial component. Key specifications include nut_style: WING, thread_class: 2B, body_diameter: 0.860 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.870 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN, special_features: COPPER ALLOYS 377,462,464,465,466,467,482,AND 485 NOT COVERED BY QQ-B-613. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-9337, 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
376997PC2
NSN: 5310-00-274-9337
FSC: 5310
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
nut_styleWING
thread_class2B
body_diameter0.860 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.870 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
special_featuresCOPPER ALLOYS 377,462,464,465,466,467,482,AND 485 NOT COVERED BY QQ-B-613
thread_directionRIGHT-HAND
wing_spread_width1.810 INCHES MINIMUM AND 1.940 INCHES MAXIMUM IN
fabrication_methodFORGED
nominal_thread_size0.500 INCHES IN
drilled_hole_diameter0.070 INCHES NOMINAL IN
hole_type_and_quantity1 DRILLED
NSN5310-00-274-9337
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 376997PC2 · 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: COPPER ALLOY 268 OR COPPER ALLOY 260 OR COPPER ALLOY 240 OR COPPER ALLOY 230 OR COPPER ALLOY 342 OR COPPER ALLOY 353 OR COPPER ALLOY 262 OR COPPER ALLOY 270 OR COPPER ALLOY 272 OR COPPER ALLOY 274 OR COPPER ALLOY 280 OR COPPER ALLOY 330 OR COPPER ALLOY 331 OR COPPER ALLOY 332 OR COPPER ALLOY 335 OR COPPER ALLOY 340 OR COPPER ALLOY 344 OR COPPER ALLOY 345 OR COPPER ALLOY 347 OR COPPER ALLOY 348 OR COPPER ALLOY 350 OR COPPER ALLOY 356 OR COPPER ALLOY 360 OR COPPER ALLOY 370 OR COPPER ALLOY 377 OR COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 465 OR COPPER ALLOY 466 OR COPPER ALLOY 467 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
•
BODY DIAMETER: 0.860 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
•
WING SPREAD WIDTH: 1.810 INCHES MINIMUM AND 1.940 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 2 STYLE
•
NUT STYLE: WING
•
THREAD CLASS: 2B
•
HOLE CONFIGURATION STYLE: CONFIGURATION K
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.870 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 268 OR COPPER ALLOY 260 OR COPPER ALLOY 240 OR COPPER ALLOY 230 OR COPPER ALLOY 342 OR COPPER ALLOY 353 OR COPPER ALLOY 262 OR COPPER ALLOY 270 OR COPPER ALLOY 272 OR COPPER ALLOY 274 OR COPPER ALLOY 280 OR COPPER ALLOY 330 OR COPPER ALLOY 331 OR COPPER ALLOY 332 OR COPPER ALLOY 335 OR COPPER ALLOY 340 OR COPPER ALLOY 344 OR COPPER ALLOY 345 OR COPPER ALLOY 347 OR COPPER ALLOY 348 OR COPPER ALLOY 350 OR COPPER ALLOY 356 OR COPPER ALLOY 360 OR COPPER ALLOY 370 OR COPPER ALLOY 377 OR COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 465 OR COPPER ALLOY 466 OR COPPER ALLOY 467 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
BODY DIAMETER0.860 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
WING SPREAD WIDTH1.810 INCHES MINIMUM AND 1.940 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATAA TYPE AND 2 STYLE
NUT STYLEWING
THREAD CLASS2B
HOLE CONFIGURATION STYLECONFIGURATION K
SPECIAL FEATURESCOPPER ALLOYS 377,462,464,465,466,467,482,AND 485 NOT COVERED BY QQ-B-613
NOMINAL THREAD SIZE0.500 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
43N12419Interchangeable
interchangeable cross-reference
interchangeable
503463Interchangeable
interchangeable cross-reference
interchangeable
29.470Interchangeable
interchangeable cross-reference
interchangeable
81-42-10-01Interchangeable
interchangeable cross-reference
interchangeable
29470-001Interchangeable
interchangeable cross-reference
interchangeable
29470Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 376997PC2?
376997PC2 is a NUT,PLAIN,WING.
What parts can replace 376997PC2?
There are 11 known substitutes for 376997PC2: 43N12419, 503463, 29.470 and 8 more. Substitute compatibility should be verified for your specific system.
Is 376997PC2 still available?
376997PC2 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026