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NAS6705-5 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

NAS6705-5: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: DISHED HEXAGON, ring_style: EXTERNAL, grip_length: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, head_height: 0.156 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-584-6557, 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
NAS6705-5
NSN: 5325-00-584-6557
NIINs: 005846557, 014572267
FSC: 5325 — Fastening Devices
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
head_styleDISHED HEXAGON
ring_styleEXTERNAL
grip_length0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
head_height0.156 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
thread_class3A A
usage_designEXTERNAL
grip_diameter0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
thread_length0.469 INCHES NOMINAL IN
fastener_length0.766 INCHES MINIMUM AND 0.796 INCHES MAXIMUM IN
inside_diameter0.499 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN
major_thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
NSN5325-00-584-6557
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NAS6705-5 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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MATERIAL HARDNESS RATING: 66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
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USAGE DESIGN: EXTERNAL
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MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 1090 FED STD SINGLE MATERIAL RESPONSE
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CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
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MAJOR THICKNESS: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.499 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: EXTERNAL
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 1090 FED STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
INSIDE DIAMETER0.499 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEEXTERNAL
SURFACE TREATMENTCADMIUM AND CHROMATE OR CHROMATE ZINC
MATERIALSTEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090
SUBSTITUTES & CROSS-REFERENCES 6
MS16624-1055Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5100-55MDReference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-21248Reference document
Same NSN cross-reference
Reference document — Identification reference
NAS51-55Reference document
Same NSN cross-reference
Reference document — Secondary reference
5100-55-S-MDReference document
Same NSN cross-reference
Reference document — Secondary reference
3100-55-ST-CDReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NAS6705-5?
NAS6705-5 is a RING,RETAINING.
What parts can replace NAS6705-5?
There are 6 known substitutes for NAS6705-5: MS16624-1055, 5100-55MD, MIL-DTL-21248 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS6705-5?
NAS6705-5 is cataloged in the U.S. Government catalog under NSN 5325-00-584-6557. 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.