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Technical Data Sheet
PartsTable / COMPONENT / 177605
177605 ✓ Verified by PartsTable
Hama · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The RING,RETAINING is a Hama industrial component. Key specifications include ring_style: EXTERNAL, usage_design: EXTERNAL, inside_diameter: 0.900 INCHES MINIMUM AND 0.915 INCHES MAXIMUM IN, major_thickness: 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN, surface_treatment: PHOSPHATE, casehardening_indicator: NOT CASEHARDENED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-955-9438, 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
177605
NSN: 5325-00-955-9438
FSC: 5325
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
ring_styleEXTERNAL
usage_designEXTERNAL
inside_diameter0.900 INCHES MINIMUM AND 0.915 INCHES MAXIMUM IN
major_thickness0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
surface_treatmentPHOSPHATE
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-955-9438
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 177605 · Hama ⚠ 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
•
RING STYLE: EXTERNAL
•
USAGE DESIGN: EXTERNAL
•
SURFACE TREATMENT: PHOSPHATE
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1065 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1066 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1069 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1070 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1072 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1074 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1075 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1078 ASSN STD 8TH MATERIAL RESPONSE OR SAE 1080 ASSN STD 9TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 10TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 11TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 12TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 13TH MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.900 INCHES MINIMUM AND 0.915 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
RING STYLEEXTERNAL
USAGE DESIGNEXTERNAL
SURFACE TREATMENTPHOSPHATE
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1065 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1066 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1069 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1070 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1072 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1074 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1075 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1078 ASSN STD 8TH MATERIAL RESPONSE OR SAE 1080 ASSN STD 9TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 10TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 11TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 12TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 13TH MATERIAL RESPONSE
MATERIALSTEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
INSIDE DIAMETER0.900 INCHES MINIMUM AND 0.915 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
29-058-159Interchangeable
interchangeable cross-reference
interchangeable
ASTM-B687Interchangeable
interchangeable cross-reference
interchangeable
4568K172Interchangeable
interchangeable cross-reference
interchangeable
TYPE120-80ZInterchangeable
interchangeable cross-reference
interchangeable
11150646Interchangeable
interchangeable cross-reference
interchangeable
120-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 177605?
177605 is a RING,RETAINING manufactured by Hama.
What parts can replace 177605?
There are 19 known substitutes for 177605: 29-058-159, ASTM-B687, 4568K172 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 177605?
177605 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-955-9438. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026