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Technical Data Sheet
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871-5-8 — 871-5-8

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

871-5-8: 871-5-8.

The 871-5-8 is a the manufacturer industrial component. Key specifications include special_features: CONE ADAPTER; DESIGNED FOR USE WITH THE MODEL TC-1726 TACHOMETER, NSN 6680-00-243-9977 AND NSN 6625-01-550-3339, end_item_identification: 6625-01-550-3339 TACHOMETER,DIGITAL,MEDICAL EQUIPMENT AND 6680-00-243-9977 TACHOMETER,MECHANICAL,HANDHELD, part_name_assigned_by_controlling_agency: ADAPTER CONE RPM. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-341-8535, 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
MRO→ MRO_GENERAL→ 871-5-8
NSN: 5306-01-341-8535
NIINs: 013418535, 016058034
FSC: 5306 — Bolts
CAGE: 06725 — SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY (USA)
SPECIFICATIONS
special_featuresCONE ADAPTER; DESIGNED FOR USE WITH THE MODEL TC-1726 TACHOMETER, NSN 6680-00-243-9977 AND NSN 6625-01-550-3339
end_item_identification6625-01-550-3339 TACHOMETER,DIGITAL,MEDICAL EQUIPMENT AND 6680-00-243-9977 TACHOMETER,MECHANICAL,HANDHELD
part_name_assigned_by_controlling_agencyADAPTER CONE RPM
NSN5306-01-341-8535
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 871-5-8 · 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
•
SURFACE FINISH: 32.0 MICROINCHES GRIP
•
EXTENDED WASHER THICKNESS: 0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.204 INCHES MINIMUM AND 1.234 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.719 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
EXTENDED WASHER THICKNESS0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
HEAD HEIGHT0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
FASTENER LENGTH1.204 INCHES MINIMUM AND 1.234 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
THREAD LENGTH0.719 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 2
3408-5-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
3D0013-5-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 871-5-8?
871-5-8 is a 871-5-8. It is classified as a MRO (MRO_GENERAL).
What parts can replace 871-5-8?
There are 2 known substitutes for 871-5-8: 3408-5-8, 3D0013-5-8. Substitute compatibility should be verified for your specific system.
What is the NSN for 871-5-8?
871-5-8 is cataloged in the U.S. Government catalog under NSN 5306-01-341-8535. This indicates validated use in U.S. government and defense supply chains.
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