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BR120 1-6AF6 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BR120 1-6AF6: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: DOUBLE HEXAGON, lubrication: DRY FILM LUBRICANT, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.375 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-338-4110, 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
BR120 1-6AF6
NSN: 5310-01-338-4110
FSC: 5310 — Nuts and Washers
CAGE: 52828 — REPUBLIC FASTENER MFG. CORP. DBA ARCONIC FASTENING SYSTEMS (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleDOUBLE HEXAGON
lubricationDRY FILM LUBRICANT
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height0.375 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresLUBRICATED KALGARD FA
thread_directionRIGHT-HAND
washer_thickness0.056 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
width_across_flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
NSN5310-01-338-4110
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BR120 1-6AF6 · 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
•
WASHER OUTSIDE DIAMETER: 0.631 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
WASHER THICKNESS: 0.056 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
OVERALL HEIGHT0.375 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.631 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
WASHER THICKNESS0.056 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
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 5
H528796Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BMN10GW6AFReference document
Same NSN cross-reference
Reference document — Secondary reference
132LH85746Reference document
Same NSN cross-reference
Reference document — Secondary reference
66796AF6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VN497DH6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 BR120 1-6AF6?
BR120 1-6AF6 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace BR120 1-6AF6?
There are 5 known substitutes for BR120 1-6AF6: H528796, BMN10GW6AF, 132LH85746 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BR120 1-6AF6?
BR120 1-6AF6 is cataloged in the U.S. Government catalog under NSN 5310-01-338-4110. This indicates validated use in U.S. government and defense supply chains.
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