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PartsTable / COMPONENT / C5947-2-4-40
C5947-2-4-40 ✓ 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,CAP is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: CAP, nut_height: 0.250 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-993-1845, 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
C5947-2-4-40
NSN: 5310-00-993-1845
FSC: 5310
CAGE: 70318 — ALLMETAL SCREW PRODUCTS CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleCAP
nut_height0.250 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.250 INCHES NOMINAL IN
nominal_thread_size0.112 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch40
NSN5310-00-993-1845
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C5947-2-4-40 · 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
•
THREAD QUANTITY PER INCH: 40
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
BEARING SURFACE TYPE: WASHER FACED
•
NUT HEIGHT: 0.250 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NUT STYLE: CAP
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH40
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.112 INCHES IN
BEARING SURFACE TYPEWASHER FACED
NUT HEIGHT0.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NUT STYLECAP
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
THREAD CLASS2B
MATERIALSTEEL CORROSION RESISTING OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
A-A-2871Interchangeable
interchangeable cross-reference
interchangeable
GGG-H-496Interchangeable
interchangeable cross-reference
interchangeable
A-A-2871 SZ1Interchangeable
interchangeable cross-reference
interchangeable
02055Interchangeable
interchangeable cross-reference
interchangeable
9320PL0844476Interchangeable
interchangeable cross-reference
interchangeable
MILT46151Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C5947-2-4-40?
C5947-2-4-40 is a NUT,PLAIN,CAP.
What parts can replace C5947-2-4-40?
There are 9 known substitutes for C5947-2-4-40: A-A-2871, GGG-H-496, A-A-2871 SZ1 and 6 more. Substitute compatibility should be verified for your specific system.
Is C5947-2-4-40 still available?
C5947-2-4-40 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