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304210-1 — BACKSHELL,ELECTRICAL CONNECTOR

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

304210-1: BACKSHELL,ELECTRICAL CONNECTOR.

The BACKSHELL,ELECTRICAL CONNECTOR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, nut_style: CLINCH, nut_height: 0.179 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN, pilot_length: 0.054 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-255-5402, 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
304210-1
NSN: 5310-00-255-5402
NIINs: 002555402, 011052020
FSC: 5310 — Nuts and Washers
CAGE: 15280 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV ES DEFENSIVE SYSTEMS DIVISION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
nut_styleCLINCH
nut_height0.179 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
pilot_length0.054 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_length1.562 INCHES MAXIMUM IN
pilot_diameter0.165 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
overall_diameter1.062 INCHES NOMINAL IN
style_designatorR.F. THREADED
thread_directionRIGHT-HAND
NSN5310-00-255-5402
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 304210-1 · 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: 0.219 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.086 INCHES IN
•
PILOT DIAMETER: 0.165 INCHES MAXIMUM IN
•
PILOT LENGTH: 0.054 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
NUT HEIGHT: 0.179 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.219 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.086 INCHES IN
PILOT DIAMETER0.165 INCHES MAXIMUM IN
PILOT LENGTH0.054 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.179 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
NUT STYLECLINCH
THREAD CLASS3B
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 304210-1?
304210-1 is a BACKSHELL,ELECTRICAL CONNECTOR.
What is the NSN for 304210-1?
304210-1 is cataloged in the U.S. Government catalog under NSN 5310-00-255-5402. 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.