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427637 — COVER AND BUSHING A

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

427637: COVER AND BUSHING A.

The COVER AND BUSHING A is a the manufacturer industrial component. Key specifications include scale_type: DIAL, dial_diameter: 3.000 INCHES NOMINAL IN, mounting_thread_quantity: 14 PER INCH, mounting_facility_nominal_screw_thread_diameter: 0.500 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-042-7637, 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
427637
NSN: 5310-00-042-7637
NIINs: 000427637, 003108982, 005843477, 007570296, 011205280
FSC: 5310 — Nuts and Washers
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
scale_typeDIAL
dial_diameter3.000 INCHES NOMINAL IN
mounting_thread_quantity14 PER INCH
mounting_facility_nominal_screw_thread_diameter0.500 INCHES IN
NSN5310-00-042-7637
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 427637 · 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
•
WIDTH ACROSS FLATS: 1.125 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
NUT HEIGHT: 0.641 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
NUT STYLE: SLOTTED, HEXAGON
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.125 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NUT HEIGHT0.641 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
NUT STYLESLOTTED, HEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH10
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 427637?
427637 is a COVER AND BUSHING A.
What is the NSN for 427637?
427637 is cataloged in the U.S. Government catalog under NSN 5310-00-042-7637. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.