Machine Bolt P/N MS9557-10

Specifications

Hardness rating

Overall Brinell Standard Minimum 248.0 and Brinell Standard Maximum 341.0

Thread class

3A

Extended washer thickness

0.060–0.070 in

Grip length

0.079–0.099 in

Features provided

Finished Head

Minimum yield strength

Pounds Per Square Inch 85000

Surface finish

Bearing Surface of Head Microinches 32.0

Nominal thread diameter

Inches 0.250

Thread length

0.651–0.671 in

Surface finish

Threads Microinches 32.0

Material

Overall Iron Alloy 660

Material document and classification

Overall Assn STD Single Material Response A-S 5731

Thread series designator

Unified National Joint Fine (Unjf)

Surface finish

Grip Microinches 32.0

Fastener length

0.750 in (nominal)

Thread direction

Right-Hand

Thread quantity per inch

28

Minimum tensile strength

Pounds Per Square Inch 130000

Head height

0.300 in (nominal)

Extended washer diameter

0.438 in (nominal)

Width between flats

0.305–0.313 in

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

MS9557-10

Also referenced as

10159664

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	D DLA/GSA stocked — stocked by DLA or GSA and issued from central stock
Unit of issue	EA each
Demilitarization code	A Demilitarization not required — non-munitions-list item
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

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FAQ

What is NSN 5306-00-113-3769?
NSN 5306-00-113-3769 (5306001133769) — Machine Bolt: SECO Parts has 134 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for machine bolt in federal supply class 5306 (Bolts).

Is NSN 5306-00-113-3769 available?
SECO Parts has 134 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5306-00-113-3769 cost?
NSN 5306-00-113-3769 is a low-cost part, so SECO quotes it by the line rather than by the piece: there is a $50 minimum per line, and quantity pricing on request — usually answered the same business day.

What part numbers cross-reference to NSN 5306-00-113-3769?
Part numbers that cross-reference this NSN include MS9557-10. It is also referenced by older, superseded or advisory numbers: 10159664. SECO can quote against any of them.