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74B502140-109 — NUT,BLIND ASSEMBLY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

74B502140-109: NUT,BLIND ASSEMBLY.

The NUT,BLIND ASSEMBLY is a the manufacturer industrial component. Key specifications include special_features: ASSY IS COMPRISED OF 1 NUT AND 1 CAP; NUT IS HEXAGONAL; CAP IS CYLINDRICAL WITH AN ID OF 0.159IN AND AN OD OF 0.432IN IN, end_item_identification: FIGHTER AIRCRAFT (F18 E/F), criticality_code_justification: AGAV, part_name_assigned_by_controlling_agency: INAVY) ORIFICE CAP ASSY-FIRE EXTINGUISHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-495-4499, 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
74B502140-109
NSN: 5310-01-495-4499
FSC: 5310 — Nuts and Washers
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
special_featuresASSY IS COMPRISED OF 1 NUT AND 1 CAP; NUT IS HEXAGONAL; CAP IS CYLINDRICAL WITH AN ID OF 0.159IN AND AN OD OF 0.432IN IN
end_item_identificationFIGHTER AIRCRAFT (F18 E/F)
criticality_code_justificationAGAV
part_name_assigned_by_controlling_agencyINAVY) ORIFICE CAP ASSY-FIRE EXTINGUISHER
NSN5310-01-495-4499
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 74B502140-109 · 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
•
CRITICALITY CODE JUSTIFICATION: AGAV
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONAGAV
SPECIAL FEATURESASSY IS COMPRISED OF 1 NUT AND 1 CAP; NUT IS HEXAGONAL; CAP IS CYLINDRICAL WITH AN ID OF 0.159IN AND AN OD OF 0.432IN IN
PART NAME ASSIGNED BY CONTROLLING AGENCYINAVY) ORIFICE CAP ASSY-FIRE EXTINGUISHER
END ITEM IDENTIFICATIONFIGHTER AIRCRAFT (F18 E/F)
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 74B502140-109?
74B502140-109 is a NUT,BLIND ASSEMBLY.
What is the NSN for 74B502140-109?
74B502140-109 is cataloged in the U.S. Government catalog under NSN 5310-01-495-4499. 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.