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Technical Data Sheet
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56605 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PLUG,TELEPHONE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, body_style: STRAIGHT HANDLE, body_length: 0.500 INCHES NOMINAL IN, finger_type: TWO CONDUCTOR, NOTCHED TURRET TIP ALL FINGERS, finger_length: 1.188 INCHES NOMINAL SINGLE FINGER IN, hole_diameter: 0.989 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-186-0964, 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
56605
NSN: 5310-00-186-0964
FSC: 5310
CAGE: 44114 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
body_styleSTRAIGHT HANDLE
body_length0.500 INCHES NOMINAL IN
finger_typeTWO CONDUCTOR, NOTCHED TURRET TIP ALL FINGERS
finger_length1.188 INCHES NOMINAL SINGLE FINGER IN
hole_diameter0.989 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN
terminal_typeTURRET
overall_length2.876 INCHES NOMINAL IN
finger_diameter0.250 INCHES NOMINAL SINGLE FINGER IN
hardness_rating50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
outside_diameter1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN
style_designatorKEY
NSN5310-00-186-0964
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 56605 · 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
•
INTERNAL PREBENT KEY LENGTH: 0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
OVERALL DISTANCE INCLUDING KEYS: 1.719 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY WIDTH: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 13
•
HOLE DIAMETER: 0.989 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY WIDTH: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL PREBENT KEY LENGTH0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
OVERALL DISTANCE INCLUDING KEYS1.719 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY13
HOLE DIAMETER0.989 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN
INTERNAL PREBENT KEY WIDTH0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD 2ND MATERIAL RESPONSE OR SAE ASSN STD 3RD MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
85-2045Interchangeable
interchangeable cross-reference
interchangeable
15353Interchangeable
interchangeable cross-reference
interchangeable
65148Interchangeable
interchangeable cross-reference
interchangeable
1610Interchangeable
interchangeable cross-reference
interchangeable
7649T2Interchangeable
interchangeable cross-reference
interchangeable
51209VInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 56605?
56605 is a PLUG,TELEPHONE.
What parts can replace 56605?
There are 36 known substitutes for 56605: 85-2045, 15353, 65148 and 33 more. Substitute compatibility should be verified for your specific system.
Is 56605 still available?
56605 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026