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1N1B4 — NUT,PLAIN,CASTELLATED,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1N1B4: NUT,PLAIN,CASTELLATED,HEXAGON.

The NUT,PLAIN,CASTELLATED,HEXAGON is a the manufacturer industrial component. Key specifications include overall_depth: 0.405 INCHES MINIMUM IN, inside_diameter: 0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN, outside_diameter: 0.690 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN, screw_drive_type: HEXAGON SOCKET, special_features: TACTILE FORM-GAIN,0.610 IN. MIN DIA,0.650 IN.

MAX DIA,0.365 IN. MIN THICKNESS,0.415 IN. MAX THICKNESS IN, style_designator: ROUND.

This part is cataloged in the U.S. Government catalog under NSN 5310-00-477-8367, 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
1N1B4
NSN: 5310-00-477-8367
NIINs: 004778367, 008784323
FSC: 5310 — Nuts and Washers
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
overall_depth0.405 INCHES MINIMUM IN
inside_diameter0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
outside_diameter0.690 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN
screw_drive_typeHEXAGON SOCKET
special_featuresTACTILE FORM-GAIN,0.610 IN. MIN DIA,0.650 IN. MAX DIA,0.365 IN. MIN THICKNESS,0.415 IN. MAX THICKNESS IN
style_designatorROUND
attachment_methodSETSCREWS
counterbore_depth0.026 INCHES MINIMUM IN
overall_thickness0.856 INCHES MINIMUM AND 0.956 INCHES MAXIMUM IN
nominal_thread_size0.112 INCHES SCREW HOLE IN
counterbore_diameter0.485 INCHES MINIMUM IN
material_transparencyOPAQUE
NSN5310-00-477-8367
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1N1B4 · 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: 0.4275 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
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THREAD SERIES: UNF
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-611 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT HEIGHT: 0.281 INCHES NOMINAL IN
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NUT STYLE: CASTELLATED, HEXAGON
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THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.4275 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-611 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT HEIGHT0.281 INCHES NOMINAL IN
NUT STYLECASTELLATED, HEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH28
MATERIALCOPPER ALLOY 360 OVERALL
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 1N1B4?
1N1B4 is a NUT,PLAIN,CASTELLATED,HEXAGON.
What is the NSN for 1N1B4?
1N1B4 is cataloged in the U.S. Government catalog under NSN 5310-00-477-8367. This indicates validated use in U.S. government and defense supply chains.
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