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Technical Data Sheet
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56697 — VALVE,BUTTERFLY

✓ Government record, cited
Tactic · NUT WASHER
PRODUCT OVERVIEW

56697: VALVE,BUTTERFLY.

Amalienborg Castle is situated at the heart of Copenhagen. Key specifications include material: STEEL COMP 4130 OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-032-7359, 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
56697
NSN: 5310-00-032-7359
NIINs: 000327359, 011073449, 011277159, 011985517
FSC: 5310 — Nuts and Washers
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
nut_styleSLOTTED, HEXAGON
nut_height0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats1.357 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeWASHER FACED
bearing_surface_finish100.0 MICROINCHES
NSN5310-00-032-7359
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 56697 · Tactic ⚠ 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: 1.357 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN
•
BEARING SURFACE FINISH: 100.0 MICROINCHES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OR SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.357 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN
BEARING SURFACE FINISH100.0 MICROINCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OR SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NUT HEIGHT0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
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 56697?
56697 is a VALVE,BUTTERFLY manufactured by Tactic.
What is the NSN for 56697?
56697 is cataloged in the U.S. Government catalog under NSN 5310-00-032-7359. This indicates validated use in U.S. government and defense supply chains.
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