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377008 — COVER,ACCESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

377008: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, flat_height: 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN, overall_width: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, overall_height: 0.264 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, overall_length: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-830-3149, 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
377008
NSN: 5315-00-830-3149
NIINs: 008303149, 013377753
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
flat_height0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
overall_width0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
overall_height0.264 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
overall_length0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
first_flat_length0.227 INCHES MINIMUM AND 0.233 INCHES MAXIMUM IN
second_flat_length0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
starting_edge_shapeSTRAIGHT
material_document_and_classificationMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-830-3149
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 377008 · 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
•
FIRST FLAT LENGTH: 0.227 INCHES MINIMUM AND 0.233 INCHES MAXIMUM IN
•
HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
STARTING EDGE SHAPE: STRAIGHT
•
SECOND FLAT LENGTH: 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.264 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
FIRST FLAT LENGTH0.227 INCHES MINIMUM AND 0.233 INCHES MAXIMUM IN
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPESTRAIGHT
SECOND FLAT LENGTH0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
OVERALL WIDTH0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
MATERIALSTEEL COMP 4130 OVERALL
FLAT HEIGHT0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 377008?
377008 is a COVER,ACCESS.
What is the NSN for 377008?
377008 is cataloged in the U.S. Government catalog under NSN 5315-00-830-3149. 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.