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Technical Data Sheet
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138203 — LINK,ROLLER CHAIN

✓ Government record, cited
Hama · BOLT SCREW
PRODUCT OVERVIEW

138203: LINK,ROLLER CHAIN.

- Optimum protection for the Apple iPhone 6 from dirt and scratches as the smartphone can be used in the folding case - Booklet case with a sturdy holder inside and uniform colour and material structure for a fi rm and secure hold of the smartphone - Magnetic lock for quick access and trouble-free locking - Slip-in compartment for safely storing business cards or the like - Super soft inside lining that protects the sensitive display - Openings for full access to connections - Slim smartphone case - Outer material made of genuine leather This part is cataloged in the U.S. Government catalog under NSN 5305-00-013-8203, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
138203
NSN: 5305-00-013-8203
NIINs: 000138203, 015488565
FSC: 5305 — Screws
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
end_item_identification3805-01-537-7952, DITCHING MACHINE RT40
part_name_assigned_by_controlling_agencyROLLER LINK
NSN5305-00-013-8203
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 138203 · 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
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WIDTH ACROSS FLATS: 0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
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FASTENER LENGTH: 1.250 INCHES NOMINAL IN
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THREAD LENGTH: 1.000 INCHES NOMINAL IN
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HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
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NOMINAL THREAD DIAMETER: 0.250 INCHES IN
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HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
FASTENER LENGTH1.250 INCHES NOMINAL IN
THREAD LENGTH1.000 INCHES NOMINAL IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 11 STYLE
SUBSTITUTES & CROSS-REFERENCES 1
FFS86TYPE1STYLE11Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 138203?
138203 is a LINK,ROLLER CHAIN manufactured by Hama.
What parts can replace 138203?
There is 1 known substitute for 138203: FFS86TYPE1STYLE11. Substitute compatibility should be verified for your specific system.
What is the NSN for 138203?
138203 is cataloged in the U.S. Government catalog under NSN 5305-00-013-8203. 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.