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90-070-3-4 — SUPPORT,STRUCTURAL COMPONENT,AIR

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90-070-3-4: SUPPORT,STRUCTURAL COMPONENT,AIR.

SUPPORT,STRUCTURAL COMPONENT,AIR. Key specifications include aircraft_location: HORIZONTAL STABILIZER, end_item_identification: ACRU, aircraft_mission_design_series: P-3, part_name_assigned_by_controlling_agency: VALVE,OIL RECOVERY. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-031-5400, 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
90-070-3-4
NSN: 5310-01-031-5400
NIINs: 010315400, 016453493, 016988015
FSC: 5310 — Nuts and Washers
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)
SPECIFICATIONS
aircraft_locationHORIZONTAL STABILIZER
end_item_identificationACRU
aircraft_mission_design_seriesP-3
part_name_assigned_by_controlling_agencyVALVE,OIL RECOVERY
NSN5310-01-031-5400
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90-070-3-4 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
PLATE THICKNESS: 0.030 INCHES NOMINAL IN
•
NUT LENGTH: 0.525 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.180 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PLATE WIDTH: 0.405 INCHES MAXIMUM IN
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MOUNTING HOLE DIAMETER: 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
PLATE THICKNESS0.030 INCHES NOMINAL IN
NUT LENGTH0.525 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO FLAT0.180 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PLATE WIDTH0.405 INCHES MAXIMUM IN
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
NUT COUNTERBORE DEPTH0.120 INCHES NOMINAL NUT IN
FEATURES PROVIDEDFLOATING NUT
SUBSTITUTES & CROSS-REFERENCES 1
M13741E02-4YReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90-070-3-4?
90-070-3-4 is a SUPPORT,STRUCTURAL COMPONENT,AIR.
What parts can replace 90-070-3-4?
There is 1 known substitute for 90-070-3-4: M13741E02-4Y. Substitute compatibility should be verified for your specific system.
What is the NSN for 90-070-3-4?
90-070-3-4 is cataloged in the U.S. Government catalog under NSN 5310-01-031-5400. 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.