Shoulder Screw P/N MS51975-8

Specifications

Fastener length

0.923–0.933 in

Head diameter

0.419–0.437 in

Thread class

3A

Thread direction

Right-Hand

Thread length

0.418–0.438 in

Width across flats

0.156 in (nominal)

Thread quantity per inch

20

Surface treatment

Overall Cadmium and Chromate

Surface treatment document and classification

Overall Fed Spec Single Treatment Response QQ--416,TY 2,CL 3

Thread series designator

Unified National Coarse (UNC)

Minimum tensile strength

Pounds Per Square Inch 160000

Hardness rating

Overall Rockwell C Minimum 32.0 and Rockwell C Maximum 43.0

Shoulder shape

First Shoulder Round

Nominal thread diameter

Inches 0.250

Shoulder length

First Shoulder Inches Minimum 0.495 and Inches Maximum 0.505

Material

Overall Steel Comp 4037 or Steel Comp 4137 or Steel Comp 4140 or Steel Comp 8630 or Steel Comp 8740

Head height

0.209–0.219 in

Shoulder diameter

First Shoulder Inches Minimum 0.3085 and Inches Maximum 0.3105

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

Cross-reference part numbers

MS51975-8 MS16638-8

Also referenced as

10386527

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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	PG package
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 5305-00-914-3818?
NSN 5305-00-914-3818 (5305009143818) — Shoulder Screw: SECO Parts has 9 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for shoulder screw in federal supply class 5305 (Screws).

Is NSN 5305-00-914-3818 available?
SECO Parts has 9 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5305-00-914-3818 cost?
SECO quotes NSN 5305-00-914-3818 on request, usually the same business day.

What does NSN 5305-00-914-3818 fit?
The federal catalog lists NSN 5305-00-914-3818 as used on: Multiple Launch Rocket System (MLRS).

What part numbers cross-reference to NSN 5305-00-914-3818?
Part numbers that cross-reference this NSN include MS51975-8, MS16638-8. It is also referenced by older, superseded or advisory numbers: 10386527. SECO can quote against any of them.