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749920 — SPACER,GEARBOX

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

749920: SPACER,GEARBOX.

The SPACER,GEARBOX is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: CONSISTING OF 742367 SPACER AND MS9390-080 PIN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-595-6169, 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
749920
NSN: 5310-00-595-6169
NIINs: 005956169, 010098604
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCONSISTING OF 742367 SPACER AND MS9390-080 PIN
NSN5310-00-595-6169
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 749920 · 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
•
OVERALL DIAMETER: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-502 FED SPEC 1ST MATERIAL RESPONSE AND QQ-C-576 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
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PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER OR COPPER ALLOY OVERALL
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CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.196 INCHES MINIMUM AND 0.201 INCHES MAXIMUM IN
•
THICKNESS: 0.0595 INCHES MINIMUM AND 0.0645 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-502 FED SPEC 1ST MATERIAL RESPONSE AND QQ-C-576 FED SPEC 2ND MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER OR COPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.196 INCHES MINIMUM AND 0.201 INCHES MAXIMUM IN
THICKNESS0.0595 INCHES MINIMUM AND 0.0645 INCHES MAXIMUM IN
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 749920?
749920 is a SPACER,GEARBOX.
What is the NSN for 749920?
749920 is cataloged in the U.S. Government catalog under NSN 5310-00-595-6169. 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.