NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5310 › 5310-00-177-1309
Self-Locking Extended Washer Nut P/N MS51988-1
In stock — 5 on our U.S. shelfNSN 5310-00-177-1309 5310001771309 NIIN 001771309
SECO Parts has 5 in stock of NSN 5310-00-177-1309 — Self-Locking Extended Washer Nut — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Low-cost part: quoted by the line, $50 minimum per line; quantity pricing on request.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- NUT,SELF-LOCKING,EXTENDED WASHER
- SECO description
- NUT, SELF-LOCKING, EXTENDED WASHER
- Federal supply class
- FSC 5310 — Nuts and Washers
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 5 |
| Total | 5 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5310-00-177-1309 001771309 MS51988-1
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Surface treatment
- Overall Cadmium and Chromate
- Washer thickness
- 0.020–0.040 in
- Thread quantity per inch
- 24
- Thread direction
- Right-Hand
- Nominal thread size
- Inches 0.190
- Overall height
- 0.244 in maximum
- Washer outside diameter
- 0.480–0.500 in
- Surface treatment document and classification
- Overall Fed Spec Single Treatment Response QQ--416,TY 2,CL 3
- Thread series
- Unified National Coarse (UNC)
- Thread class
- 2B
- Width across flats
- 0.375 in (nominal)
- Locking feature
- Prevailing Torque All Metal Design
- Material
- Overall Steel
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
MS51988-1
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 | Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 5 on the shelf |
| 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.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 5310-00-177-1309?
NSN 5310-00-177-1309 (5310001771309) — Self-Locking Extended Washer Nut: SECO Parts has 5 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for self-locking extended washer nut in federal supply class 5310 (Nuts and Washers).
Is NSN 5310-00-177-1309 available?
SECO Parts has 5 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5310-00-177-1309 cost?
NSN 5310-00-177-1309 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 5310-00-177-1309?
Part numbers that cross-reference this NSN include MS51988-1. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names NUT,SELF-LOCKING,EXTENDED WASHER. Same name is not the same part: check the part numbers.